M300 M300-V PLC Onboard Instruction Manual [PDF]

Zitiervorschau

BNP A2O.W -i t

USA-E99051-015-*

MITSUBISHI CNC MELDS 300/300-V

Series

PLC ONBOARD INSTRUCTION MANUAL

ADVANCED

AND

EVER

ADVANCING

MITSUBISHI ELECTRIC

CONTENTS

1. GENERAL .......................*...... ...*...........**.. ......... ●

2.

●

Page 1

SYSTEM CONFIGURAT10N ...............................................

2

2-1

System Configuration ....... ...................................

2

2-2

14-inch and 9-inch CRT Display Terminal ............... .......

4

2-3

RAM and ROM Cassettes for Onboard Operation (V series)

.......

5

2-3-1 RAM Cassette Appearance .....................................

5

2-3-2 ROM Cassette Appearance .....................................

6

2-3-3 liOMCard MC431 Appearance ...................................

7

2-3-4 ROM Card MC431 Setting ......................................

7

2-4

RAM and ROM Cards for Onboard Operation (Not for v-series) ....

8

2-4-1 RAM Card Appearance .........................................

9

2-4-2 RAM Card Setting ............................................

11

2-4-3 ROM Card Appearance .........................................

11

●

●

2-4-4 ROM Card Setting ............................................ 12 2-5

System Selection .............................................. 13

2-5-1 Explanation of System Selection Switch ...................... 13 2-5-2 Parameter Setting ........................................... 14 2-5-3

Second Card Onboard Function Handling Method (V series) ..... 25

2-5-4

Second Card Onboard Function Handling Method (Not for V-series) .. ... ............. ..................... 26 ●

3.

●

●

CREATING LADDER CIRCUIT AND MONITOR OPERATION ...................... 33 3-1

Creating the File ............................................. 46

3-1-1 Registering the Edit File ....... ............ .............. 47 ●

3-1-2 UserPLCRUN/STOPbyCR’rOperation

●

.......................... 48

3-2 Writing the Circuit ...... .. ................. ............... 50 ●

3-2-1

●

●

CreaCing the Circuit ........................................ 50

3-2-2 Modifying the Existing Circuit .............................. 51 3-2-3 Adding the Circuit Block .......... .........,.........*..... 53 ●

3-3

Reading the Circuit ........................................... 55

3-3-1 Reading the Circuitry Step Number .......................... 55

-i-

Page 3-3-2 Reading the Circuit by Device Number ........................ 58 3-3-3 Reading the Circuit by Contact or Coil Number ..............

●

59

3-3-4 Reading the Circuit by Instruction .......................... 60 3-3-5 Reading the Circuit by ENI)Instruction ...................... 62 3-3-6 Circuit Read Functions ...................................... 63 3-4

Inserting the Circuit ......................................... 64 Inserting the Circuit Symbol ...................... ....*. .. 64

3-4-1 3-5

●

●

Deleting the Circuit Block ........*.*........* ..... *........ 68 ●

●

3-5-1 Deleting the Circuit Block .................................. 68 3-5-2 Deleting the Circuit Symbol ................................. 70 3-b

Circuit Extension Function ....................................

73

3-b-l Extension Circuit Operation Examples ........................ 74 3-6-2 Error Messages .............................................. 82 3–6-3 Relationship between Number of Returns and Circuit Length ... 84 3-7 Monitoring the Ladder Circuit ................................. 85 3-7-1 Monitoring the Circuit ...................................... 88 3-7-2 Freezing the Screen at Monitor Stop Trigger Point ........... 90 3-7-3 Monitoring the Registered Device ............................ 92 3-7-4 Monitoring the Current Value in Decimal Hexadecimal Notation .................................................... 93 4.

FUNCTION OF PU’rTINGUSER PLC INTO ROM .............................. 95 4-1

Function Description .......................................... 100

4-1-1

Rewrite ..................................................... 100

4-1-2

Read . *....**...... ....... ...0................. ...... ... 102 ●

●

●

●

●

4-1-3 Erasion ..................................................... 105 4-1-4 ROM Write ................................................... 108

5.

4-1-5

Comparison .................................................. 115

4-1-6

ROM Locations ............................................... 118

FLOPPY DISK READ AND WRITE .*................... ................... 119 ●

5-1

Installing Interface (l/F) Unit . .,.. .............. .......*. 122 ●

-ii-

●

●

Page 5-1-1 M320 and M330 ..*...**....................................... 122 5-1-2 M355 .......................................O.............$.O 122 5-2

Displaying Floppy Disk Operation Screen ....................... 123

5-2-1 Calling FLD Screen .......................................... L24 5-3

Function Operation Procedures ................................. 126

5-3-1 Read ......*.......*..*..........................*........... 126 5-3-2 Write .......*........**....0.............................**. 128 5-3-3 Compare ..................................................... L29 5-3-4 Delete ..........................................0........ O. 131 ●

5-3-5 Initialize (Formatting) ...............*.*......... ..*...... 132 ●

5-4 Maintenance and Precautions on Use ............................ 134 5-4-1 Maintenance of Floppy Disk Drive ............................ 134 5-4-2 Handling of Floppy Disks ....*.......................*.**...* 135 5-4–3 Other Precautions on Use .................................... 136 5-4-4 Troubleshooting ............................................. 138 5-5

Floopy Disk Drive ............................................. 139

5-5-1 Configuration ............................................... 139 5-5-2 6.

Specifications ................*.............*............... 139

MESSAGE PREPARATION .................. .* .... ●

●

●

●

...................

●

142

6-1 Menu Operation Message Preparation ............................ 146 6-2

Initial Screen ................................................ 147

6-2-1

Initial Setting Example .......................*...*......... 149

6-3

Read . .... .. ............ ........... ....................... 151

6-4

Write ..... *........*...............*. ..* ........ ......

●

●

●

●

●

●

●

●

●

●

●

.. 152

6-4-1 ALARM MESS and OPERATE MESS ............*.*......*........... 153 6-4-2 PLC Switch ..*..**.......................*...........*O...... 157 6-4-3 Device (Contact) Message and Coil Message ................... 158 6-4-4 COMFIENrMESS

●

*...*...........*.....................0........ 159

6-5

Insertion ..................................................... 161

6-6

Deletion

●

...*..... ............................. .*.*......... 162 ●

●

- iii -

Page 6-7 Kanji and Kana Entry Method ........*.......................... 163 6-7-1 ALPHA ........*...*..............................*.......... 163 ●

6-7-2 Kanji .......*........................*..*................*., 164 6-7-3 Kana .................. ...............*....................* 166 ●

7.

PRINT-oUT FUNCTION ...*...** ....*.*......*.................0....... lb8 ●

7-1 Print-out Flowchart ........

●

●

. ..... .... ●

●

●

●

............... ... 169 ●

7-2 Printer Connection and Select Switch Setting .................. 170 7-2-1 Printer Connection .......................................... 170 7-2-2

Initial Setting of PRT-02B .............0................ ... 171 ●

7-2-3 PRT-02A Select Switch Setting ............................... 176 7-3 Operation Procedure ........................................... 179 7-3-1

14-inch CRT Setting and Display Unit ........................ 179

7-3-2 9-inch CRT Setting and Display Unit ......... ..... ......... 180 ●

●

7-3-3 Settings of Print Conditions ................................ 181 7-3-4 Print Forms and Line Spacing ................................ 182 7-3-5 Combined Matrix of Print Forms and Line Spacing ............. 183 7-3-6 Printing the Ladder Program ................................. 184 7-3-7 Printing Messages ........................................... 185 7-3-8 Interrupting Printing .............................*.**...... 186 7-4 Messages ...................................................... 186 7-5 Example of Printout ........................................... 187 7-5-1 Example of Printout of Ladder Program in Elite Mode ......... 187 7-5-2 Example of Printout of Ladder Program in Condensed Mode ..... 189 7-5-3 Example of Printout of Alarm Messages ....................... 191 7-5-4 Example of Printout of Operator Messages .................... 192 7-5-5 Example of Printout of PLC Switches ......................... 193 7-5-6 Example of Printout of Contact Comments ..................... 194 7-5-7 Example of Printout of Coil Comments ........................ 195 7-5-8 Example of Printout of Comments .......*.................*... 196 8.

ERROR MESSAGES ...*.............. ........ ......................... 197 ●

-iv-

●

I 1. 1.

GENERAL

GENERAL

The M300-V series CNC is an upgraded version of the traditional M300 series for higher speed and precision operation. This manual is prepared for the M300-V and M300 series controller user for development of user PLC (note 1) and creation of message data. PLC operation performed on the controller is called onboard operation. The onboard function enables the following: (1) Creation of new ladder files (2) Edit of existing ladder circuits (read, write, insertion, and deletion) (3) Ladder circuit monitor (4) Putting into ROM (Non-V series onboard operaton only ) (Note 2) (5) Floppy disk read and write (6) Preparation of message data such as alarms, operator messages, and PLC switch messages (7) ~;~~i;; ladder circuit and message data (V series onboard operation only)

User PLC can also be developed by using MITSUBISHI FA Workstation M-FAS in addition to the control unit. The relevant documents are listed below: (1) MELDAS 300/300-V Series PLC Programming Manual (Ladder) ....... BNP-A2947 (2) M-FAS302-TYPE 11 Instruction Manual ........................... BN2-A0887-14 (3) M-FAS302-TYPE I Instruction Manual ............................ BNP-A0887-15 (4) M-FAs302 ROM Writer Manual .................................... BNP-A0887-11 (5) M-FAS302 ROM Writer TYPE-B Instruction Manual ................. BNP-A0887-57 (6) M-FAS302 PLC Development Software Manual ...................... BNP-A0887-27 (7) MELDAS 300 Series PLC Interface Manual ........................ BNP-B3512 (8) ROM Writer System (RWOIA) Instruction Manual .................. BNP-A2923 (~) MELDAS 1/0 Printer (PRT-02B) Instruction Manual ............... BNP-A2919 Programmable Logic Controller

Note 1:

PLC:

Note 2:

This manual describes the specifications common to M300-V and M300 series controllers unless the applicable series name is specifically noted.

-1-

t====+

2. 2-1

SYSTEM CONFIGURATION System Configuration

b-

(1) =000000

qCNPOI

connector

l/F card TO flow

disk dri~

JJJ fivn

From l/F card - -

+-------------------

7

% To printer

!

~ lL~

(Note)

k

[

. . ‘.

FIOPPY disk drive (FDOI unit) /;

.. . . . . .. . .

I A

cassette

— HE=) ,.. ( Lett )

: ‘:2”

I

(Ridm)

v \

‘Ym’’’card

‘r:

I II

Y

“’@!!!!iP ROM writer

/

I

I

3.5-inch

vI

r

I

floppy

disk

I

ll~lllrllllml

~lJL’

M–FAS302–I/11 Note: The ROM or RAM cassette is mounted on the system ROM card MC431.

-2-

t=====

(2) Controllers other than V’series

—

CNPO1connector

— —

CNP91-RWcable AVR -—---

.----

.-----

*3

From IIF card . ..n

ACV1cable Floppy disk drive [FDO1 unit)

100VAC

Q

.... ...-

Onboard ROM (4 places]

M-FAS302-l/11

Note 1:

The ROM package is Intel’s D27256-2 or D27512-2 (access time not longer 200 ns). It is supplied by Mitsubishi. Do not use ROM packages other than those supplied by Mitsubishi.

Note 2:

After putting user PLC into ROM, install the MC411 or MC413 directly in the MC941 or MC942 slot shown above.

-3-

2-2 14-inch and 9-inch CRT Display Terminal ,., with the control unit are Typical examples of CRT display terminal given below: Alphanumeric and symbol keys CRTdisplay

Reset key

III

II MITSUBISHICNC I 1,

4

Function selection keys

Shift key I Ready LEDl I

q!RR~

I

“,.,.

‘OWER 1

0

I

,——

t~

— ——

lzloml5-

14-inch CRTdisplayterminal

EEEICALCFI Elm ——+ ‘p@

‘t

-.’

A I

‘

}

Calculation key

~i-

I

tI

,

I Menu keys

Intensity adjustment

Page keys

Keys

CRTdisplay

Curse; keys

Function selection keys

Input kev

Alphanumeric symbol keys

Data correction keys

and

I

‘“ENm!lEiEilll

,

I

Elmmmll 1

Q

9-inch CRT display terminal

J II [

II

II

II +

II

II 1

0

I Data correction keys

Ready LED Intensity adjustment

Menu keys

1 Page kevs

-4-

Reset key

Cursor keys

s lift key

Input key (calculation)

I 2.

SYSTEM CONFIGURATION

2-3 RAM and ROM Cassettes 2-3

RAM and ROM Cassettes for Onboard Operation (V series)

This section explains the RAM cassettes MC842 and MC844 and ROM card MC431 used for onboard operation and also the ROM cassettes MC841 and MC843 for actual operation. (1) RAM cassettes MC842 and MC844

RAM capacity

Applicable ROM cassette

MC842

256K byte

MC841

MC844

512K byte

MC843

Remarks The card itself does not have a backup function.

(2) ROM cassettes MC841 and MC843

ROM capacity

Applicable RAM cassette

MC841

256K byte

MC842

MC843

512K byte

MC844

Note 1:

Remarks

When writing to ROM with the ROM writer system (RWOIA), be sure to use the RAM and ROM cassettes in pairs specified above.

2-3-1 RAM Cassette Appearance

u

Un

L

El JII

Card name (MC842 or MC844)

-5-

lm

I

2-3-2 ROM Cassette Appearance (1) MC841

4

II ,r-~

..~-l

)“”

r-~..~-7 II 1, II II II

m

o-l

/;

(No

~1

te)

Ii 1[ II 1, L–___J

L____]

‘

II

II I 70

I

C~rd name (MC841)

(2) 14C843

-

c1 ~.-—--

——————-

I

7 ,J

1

i -,

!

L–——_——–_———–i

~-––––

——_.__—1

I I 1 k-———————

~-–-––

—— -.’

———----

I

,4

I

‘.

l—— ——________J

~-––––

————-->

1 !

n

J (-1

!——–——————--
M

w

I

o4

MC411

MC941

I

J

CNCmainunN card baskat

Stop user PLC Set pin 2 of the system selection switch on the MC1ll card in CNC to ON to stop user PLC.

,rMC161

1

User PLC stop

ON

—

System selection switc17

Card MCI I 1 [Card MC161

depending

on the model]

-29-

*

; w & w’ m . .x

//

I 2. 2-5

SYSTEM CONFIGURATION

I

System Selection I

o5

Set bit selection parameter Turn on the CNC power and set both bit selection parameter #51 bits O and 1 to 1. 7

# (~)

6

5

43

2

10 1

(

1)

L Onboard on 7;: [ System copy on ~!:

o6

Onboard off Onboard on : System copy off System copy on

Load second card onboard software (system COPY) Load second card onboard software into the RAM card for debugging. (The figure shows an example using the 9-inch CRT setting and display unit.) (a) When the c1 FO key is pressed, the following screen is displayed:

MITSUBISHICNC

MELDAS

SERIES

300

PLCPROGRAMMING TOOL COPYRIGHT (C) 1986 MITSUBISHI ELECTRIC CORPORATION ALLRIGHTSRESERVED

LADDER

S-COPY

(b) When the menu key

ZS-COPY is pressed, the following screen appears: PLCSYSTEMCOPY

I

I

FILE

1.

ONBOARD

2.

DEBUG RAM CARD

1. READ

SYSTEM

ROM SIZE

3. VERIFY

K BYTE

/

-30-

I 2.

SYSTEM CONFIGURATION

2-5 System Sele&tion

tI

1

is pressed, the memory size and debug

(c) When the menu key F)

card type are displayed as shown below. Next, when the

INPUT o

key is pressed, the message “EXECUTING” is displayed on the screen. When the loading ends, the message “COMPLETE” is displayed. Then, press the menu key Im ‘VERIFY and the

INPUT

o

key. At the normal

termination of check, the message “COMPLETE” is displayed. If the software is not normallv loaded for some reason. the messa~e “CHECK ERROR” is displayed.PLCSYSTEMCOPY 1.

ONBOARD

SYSTEM

2.

DEBUG RAM CARD

128K BYTE

ROM SIZE

MC941

COMPLETED ,

I.READ

3. VERIFY

Loading the second card onboard software is now complete. Note:

The memory size and debug card types are automatically judged for display. ,

Connection card RAM card

o7

ROM card

Onboard system memory size display

Debug card dfsplay

MC941

MC411

128K bytes

MC941

MC942

MC411

128K bytes

MC942

MC942

MC413

256K bytes

MC942

Work before end After the second card onboard software has been loaded, perform the following: (a) Set bit selection parameter #51 bit 1 to O. (b) Again press the FO key and check that the following screen is 0 displayed:

-31-

I

MITSUBISHI CNC

MELDAS

SERIES

300

PLCPROGRAMMING TOOL BND-204W300-A0 COPYRIGHT (C) 1986 MITSUBISHI ELECTRIC CORPORATION ALLRIGHTSRESERVED LADDER

MESSG.

FILE

(c) If this screen is displayed, turn off the CNC power and remove the user PLC ROM card from the RAM card for debugging. Remove onboard ROM from the user PLC ROM card and store the onboard ROM (Note). The second card onboard software loaded into the RAM card for debugging will be retained for about two months even if the CNC power is turned off. However, it is not retained if the RAM card for debugging is removed from CNC. The second card onboard system startup is now complete. The subsequent handling method is the same as in the system in which the onboard function exists in CNC. See 3. Note:

Second card onboard ROM is used only when user PLC is debugged. Basically, it is attached to the RAM card for debugging for shipment from MITSUBISHI. Be careful so as not to ship as a product with it attached to the user PLC ROM card.

-32-

3.

CREATING LADDER CIRCUIT AND MONITOR OPERATION

CREATING LADDER CIRCUIT AND MONITOR OPERATION

3.

A ladder circuit can be created on board and further the ladder circuit created on board or by the Mitsubishi FA workstation can be edited on board. Operation states of the sequence circuits can be monitored.

I

Creating the file

Writing thecircuit

E

I

Note:

Reading the circuit inserting the circuit

Erasing the circuit

l--

I

Cll

~vj’m &%tte card MC431

MC842 or MC844

1

Monitoring

the circuit

1

I

To edit or create ladder circuits or message data, stop the user PLC. For the operation procedure, see section 2-5-1 ‘“Explanationof System Selection Switch” or section 3-1-2 “User PLC RUN/STOP by CRT Operation.”

MC941, MC942 RAM card

D I

For@

series

I

For non- @series

The table below lists the items to be explained in this section: Mode

Function item

File specifiCreating the file cation mode

Registers an edit file.

I

User PLC RUN/STOP Creates a circuit. Writing the circuit Modifies an existing circuit. Adds circuit blocks. Reads a circuit by step number. I

Reads a circuit by device number.

Circuit mode Reading the circuit

Reads a circuit by contact or coil number. Reads a circuit by an instruction. Reads the last circuit by the END instruction. -33-

I

Function item

Mode Inserting the circuit

Inserts circuit symbols. Erases circuic blocks.

Erasing the circuit

Erases circuit symbols.

Circuit mode

Monitors the circuit. Freezes the screen at monitor stop trigger point.

Monitoring the ladder circuit.

Monitors the current value (Declmal— ~

The modes and function items above are explained in order.

(1) Menu operation

o1

14-inch CRT display terminal

CNC function selection key

(Function menu}

I

1. MESSG.

4. LADDER

6. LINK

Press menu key

7, FILE

I

B {Submenu)

1 2.CIRCUIT I Press menu key

.B

(Operation menu)

f 2. WRITE

1.+~2.+3.~~4.+#

3.INSERT

4. DELETE

5. CONVT

6. MONIT

5.-( >”6.+}7.

I

MENU

8.-

ME.u~ MENU

1[

-34-

B

o 2

9-inch CRT display terminal

FO c1

CNCfunction

(Function

selection key

menu)

I

in I’L In

4. LADDER

1. MESSG. 6. LINK

MENU

7. FILE

MENU *

‘MENU

Press the menu key B’ (Submenu) I

1

I

I

2. CIRCUIT Press the menu key

1 11. READ I 5.

CONVT

IzzI!!3

2. WRITE

;Operationbardl

3. INSERT 4. DELETE

MENU ! MENU I

6. MONIT

(2) Circuit mode display screen

o1

14-inch CRT display terminal

80 characters ~

9contacts max

~ PLC ladder

M1O

18 lines

~ r I

~>

T1 Klo> 9 lines for ladder display

xl

(one line for

2506

. . . ----------------------------------------------------------------------_-- —_. _-—------------------------7 lines

1. Read

-------------

-----

_____________________________________ -----------------

Memory (6040/8192 steps) -—----------------------------CIRCUIT Function Mode READ ---------------___________ ------

1

Y30

------2. Write

)

Display for monitoring

______

_—----------------------------___________ SET

Data ( _______ _________

—---------—-3. Insert

----

~x~

G____

------

___________

. J

Memory size used and messages Mode and functions

__________________________ 4. Delete

5. Convt

-35-

6. Monit

Men{

Menu display field

3.

o 2

CREATING LADDER CIRCUIT AND MONITOR OPERATION

9-inch CRT display terminal

~:::::rn-,

Six lines for ladder display

[ (oneline

12 line

---.

t 6 line

— ---------

-----—

-----------------

------------

- ---.---

------

. ---

2. Write

------Data ------

------

3.

_______ ( ------

-----4.

Insert

~~

))

Display for monitoring Memory

-----

----------

(

-. ___

------______ ------------____ ------------ ___ --

Memory (6040/8192 steps) ----------------------Mode CIRCUIT Function READ SET -------------=. . -----------------1. Read

1

-_----

------ —----.-— _ _______

for

)

---

size used and messages

Mode, functions,

and data setting field

--------

Delete

Menu

Menu display field

(3) Basic key operation

o1

available:

The following basic five instruction input

m

1)

+ device number

EmEI (LD xl)

m

2)

+ device number + device number

(Example)

j=) T O KIOO ‘-l (OUT TO KIOO)

~~

m

3)

mm

EEHIIEIEIEI

+ instruction + device number

(Example]

~~--ific--~”--6&.................

DE)

J-1

EEIIZIEIEIEHZI

(INC00) 4)

m

+

instruction

+

device number + device number

(Example)

-i~MOV:KO: ---””---’-”-----’”----”j . ...................DO .... (MOV KO

m

@lq[malzlH@zlmQ

DO)

-36-

m

‘)

+ instruction + device number + device number

+ device number

(+ D(l K1

o 2

Dl)

Caution on key operation Some CNC display terminals do not contain keys such as DSP (space

1)

key), c1


.

The basic keys and alternate keys are listed below: key is represented as INPUT/CALC or INPUT depending Note: The IINPUT] — on the model.

INPuT

o

is used throughout the manual.

Basic key and alternate key operation in programming Basic key operation

Instruction

I

Alternativekey

Instruction

operation

~

—--—-–--t–— i

+

+ o

--@

~

—-----L-.–---—-

Basic key operation -----

I

Altemativekeyoperation

-———

LD> > c1 ----– --–— -------- --~––...-.—.-....—.———.-.-–&

EIEI -——

‘---

———

t ______.–+-D __-+ .. ‘+— ‘~o---l~fij~”-””----””_..__. _.L_._. .-––+ -- ------ -------.:.:.

-----

–

-

-.

-.. .l”:.?

;Emp.EIQ.._E.. ..— .. —.+ Fmg

0 . -..—.--–.—-— -d—.—

“’::-:%--+~g– ---- .-— ..~__._...

..’’’:j:

/ LJ____ ——. h“~----iibl ‘--F-FHIEI _D..*____..iilElEl ~.=

EmmZE-----------1-------,——

‘-” ‘;RD’ -----LD< -. .

-----------------—

~[qllJpJ

.A ND


f

54

. -----

-— ---

-----—

-- -----

-- —-- -----

-----

Point (1) Inserting or adding a circuit block automatically changes the succeeding program step numbers and CJ destination labels.

-54-

I

3.

CREATING LADDER CIRCUIT AND MONITOR OPERATION

3-3 Reading the Circuit I 3-3 Reading the Circuit 3-3-1 Reading the Circuit by Step Number This operation reads the circuit blocks by specifying a step number. Basic operation

FPl=)”F++==l”

E

Operation procedure (1) Press

o

INPUT

●

enter the step number, then press

B’m’andm’

This displays the circuit blocks starting from the one whose step

number is specified on the screen. o

If the number of an intermediate step of a circuit block is specified, the step numbers are displayed from the first step of the block.

displays the circuit on the previous screens (scrolling (2) Pressing Band@ one screen up) while pressing + and displays the circuit on the next

OEI

screen (scrolling one screen down). Pressing ,~PuT successively scrolls another screen down. When the screen is o scrolled down to the last circuit block, LADDER END is displayed in the message display area.

o

Pressing ,,PuT after pressing~

Note:

and ~~Pu~ works the same as above.

It takes time to display another screen by pressing _ and c1 INPUT three times more than by pressing + and

o

0 El”

(3) If one circuit block is divided in two screens, use the cursor key~or u ~ to move the cursor to the top or bottom of the screen and further press o

the cursor key to scroll the the screen one line. Continue to press the cursor key until the whole block appears on the screen. Even when the circuit block is not divided in two screens, pressing the cursor key ~or~can ~ scroll thescreen. Notethat, however, pressing the cursor key ~ can scroll the screen but cannot display the next circuit. n

-55-

.

—,

.

3.

CREATING LADDER CIRCUIT AND MONITOR OPERATION

3-3 Reading the Circuit 1 Example 1:

Read the program with step No. 100.

p)

-

-).

)j)

+ZI”(IHWEI Steo number

L -——

———

.—

---

____

____________

_______

Example 2: After reading the program with step No. 100, move the cursor key ~ to the

o

bottom of the screen, then press ~four u x; 100

times then n ~ four times. \

~Ylo 7

pzl

\“

Em

~

Qxl--l x2

103$

!~

11

’11>

‘

x3

Elm

II

Y12 107

,

+X+”ll

t

Al M3 11

7- -

“ cannot be read. For example, +T15K5>cannot be read.

+ —?’q

and device number

~T15

BmmH@

K@-1

~=~ ==’’ied timer or counter coil. Reads the blocks

Circuit symbol

+Wi:lz[:i:z

B@@uB

~Mow.Ky&T-R3 .....................

ijstru~~th tion code

;;;&~;%nt%#&rding device numbers,

+MoWK-iuT”-2.....................!

BElzl

@l@

Reads the last circuit block.

~~~, pr

-63-

j

1 3.

CREATING LADDER CIRCUIT ~

~

3-4

Inserting the Circuit

3-4-1 Inserting the Circuit Symbol

]Dj)–

This operation inserts the circuit in units of circuit symbols. Basic operation

[

Circuit

operation

read

)-F)

II @_[

Instruction

input operation

4 c1

0

o

Operation procedure

e

+

+

(1) According to the circuit read operation, display the circuit block into which a circuit symbol is to be inserted. (2) Pressing p) Y

‘rases all circuit blocks except for the one at the cursor /

position. o When inserting a circuit symbol into the circuit block other than the one displayed on the top of the screen, move the cursor to the beginning of the target block and then press : the specified circuit block B moves to the top of the screen and the other blocks disappear. (3) Using the cursor keys, move the cursor to the position where a symbol is to be inserted and perform the instruction input operation. Note that, depending on the system, data insertion may be not allowed at the top of the screen. With such system, an attempt’to insert a circuit symbol results in an operation error, displaying OPERATION ERROR in the message display area. (4) After insertion of a circuit, be sure to press

lEzlandB”

When ,,,u,is pressed, COMPLETED is displayed in the message display area and o

the updated circuit is displayed.

Point Inserting or adding a circuit changes automatically the succeeding program step numbers and CJ destination labels.

-64-

3.

CREATING LADDER CIRCUIT AND MONITOR OPRRATION

3-4

Inserting the Circuit

Example: Read step No. 18 and insert contact B with device No. X8 as an AND circuit after the contact with device No. Y15.

)=)–IJ=)+=)-$J+J+ B

Reading step No. 18.

1

EZ3”EI Inserting contact

L

.

-

-

-———

——

--------

B with device No. XB after Y15.

----

———

-——-

—————-

r

l-_—___-_—-_____——

-4

>

---------

.-----.-J

-65-

3. 13-4

CREATING LADDER CIRCUIT AND MONITOR OPERATION Inserting the Circuit

The following shows the examples of insertion/additionof other circuit symbols.

o 1

Inserting the contact

(Before

(After

keying in)

keying

in)

■ M1O

’51

‘“1

b’

++~’~

4

I

I

Eight contacts i

Note:

(Before keying in}

’70 )-J

O*”: No more symbols can be inserted into this circuit condition.

(After

-66-

keying in)

I

o2

CRRATING LADDER CIRCUIT AND MONITOR OPERATION

3-4

Inserting the Circuit

Inserting the horizontal bar INPUT

m–B–

c1 (Before

I

3*

xl

■

keying in]

(After

x3

pa-y”pp o3

JTy”l

Inserting the vertical bar

-4■

-4-

-67-

keying in)

3.

CREATING LADDER CIRCUIT AND MONITOR OPERATION

3-5

Deleting the Circuit

3-5 Deleting the Circuit 3-5-1 Deleting the Circuit Block This operation can delete circuit blocks one by one. Basic operation circtitrea,operation]-p)e

)j)_R

[ 6. [1

El

Operation procedure (1) According to the circuit read operation, display the circuit block to be deleted. (2) Pressing

erases all circuit blocks except for the one at the cursor B

position. o

When deleting the circuit block other than the one displayed on the top of the screen, move the cursor to the beginning of the target block and then press : the specified circuit block moves to the top of the B screen.

DELETE 1-CIRCUIT is displayed in the message Berm” key again deletes the specified block. display area. Pressing the ,MPUT o

(3) Press

o

Even when the target circuit block contains the data instruction for the output device, pressing F) and ~) ‘r ~~) , and Ecan delete the block.

Note: After deleting the circuit block, there is no need to press m

‘n’B”

d Deleting a circuit changes automatically the succeeding program step numbers and CJ destination labels.

-68-

3.

CREATING LADDER CIRCUIT AND MONITOR OPERATION

3-5

Deleting the Circuit

Example: Read step No. 25 and delete the circuit block containing it.

Reading step No. 25.

Deleting the circuit

‘Ew’by’”> Z

X7 34

Reading step NO.25.

Displayed

32 Y40

~D-)

M41

4H~

block.

after pressing ~)@

>

M,” 37

-~--’--

‘“”ti”-:-”P-ioo-]

-d

M41

1+

(::)

F24 M41 +1~

’44)

When-an attempt to press F)

and @after

creating the circuit causes a

ERROR, delete the faulty circuit block. Or, delete a circuit block before pressing ~=) andm.

LADDER

u

/

Y

F1O 4

Y25

x’” ,

b

II

T

41

X21

X23

.4’1

II

Thesetwoblocks are not assigned step num hers because a LADDER ERROR occurs.

Y26

X22 (

1

.—-—— ——-———— - - .-

[

Circuit edit operation

-— - - .—-—

)-D=)*

—--——

@-r~.DDERERRORJ

The Y25 circuit block generates a circuit create arror.

lB–+-G+.-D-) 5.


~rDELETE

Y25 circuit block.

-69-

~

I

1-cIRcUIT (DISp} ~ [email protected]+@ Converting the Y26 circuit block.

3.

CREATING LADDER CIRCUIT AND MONITOR OPERATION

3-5

Deleting the Circuit

When a normal circuit block is deleted, DELETE l–CIRCUIT is displayed in the message display area. When a circuit block with no step number assigned is deleted, DELETE l-CIRCUIT (DISP) is displayed. 3-5-2 Deleting the Circuit Symbol This operation can delete a sequence circuit in units of circuit symbols. Basic operation [

Circuit read operation

l–Ek—

‘1’IE) 1. +-

n

2. +f-

Operation procedure (1) According to the circuit read operation, display the circuit block containing the circuit.symbol to be deleted. (2)” Pressing

D position.

4 DELETE

erases all circuit blocks except for the one at the cursor

o When deleting the circuit block other than the one displayed on the top of the screen, move the cursor to the beginning of the target block and then press the specified circuit block moves to the top of the m’ screen. (3) Using the cursor keys, move the cursor to the circuit symbol to be deleted, and press

o INPUT

D~)~F)YIFzz)~~) ~~)~or~~),thenpr

to delete it.

(4) After deleting the circuit, be sure to press

Band@”

When the ,,pU, key is pressed, COMPLETED is displayed in the message display 0 area and the updated circuit is displayed.

w

I

Deleting a circuit symbol and conversion change automatically the succeeding program step numbers and CJ destination labels.

-70-

.

Example: Read step No. 12 and delete X3. D=)–~=)–F)–~-E-@—l Reading the step No. 12.

‘B–@”m”B–E–1=1-@ Deleting the circuit symbol X3.

‘12y-;mq

“

L—— --- ______ ________ ----

________ _

The following shows examples of.deletion of other circuit symbols.

o 1

Deleting the contact

El “El (JTZ--) (Before

(After

keying in}

-71-

keying in}

(c)

F)+-J-@-j=++=-J (Before

o2

(After

keying in]

keying in)

Deleting the vertical bar

(Before

keying in)

(After

Note:

Pressing

5.CONVT D

-72-

keying in}

is invalid with this circuit.

I 3. I 3-6 3-6

CREATING LADDER CIRCUIT MONITOR OPERATION

I

AND

Circuit Extension Function

Circuit Extension Function

The circuit extension function is used to create an M300 series ladder circuit which is wider than eight contacts and one coil (equivalent to nine contacts). The circuit extension function operation method and specifications are explained. Caution: @

When ~=)

is pressed, a maximum of six returns can be made if the number

of extended lines is one;

is pressed, the number of returns is

‘hen m

up to one. n @

The circuit extension function cannot be executed in some systems.

Ladder circuit display buffers consist of 18 stages long and nine contacts (containing a coil) wide. Six stages are displayed on the 9-inch CRT screen; nine stages are displayed on the 14-inch CRT screen. The portion not displayed —— on the screens displayed by using ~ + Uu

“

14-inchCRT

9-inchCRT

6 stages x 3 buffers 9stagesx2buffers

Note:

For 9-inch CRT, two buffers are provided in some systems.

,,,,bl

-73-

“,

3.

I3-6

CREATING LADDER CIRCUIT AND MONITOR OPERATION Circuit Extension Function

3-6-1 Extension Circuit Operation Examples (1) Write example of a single return

o

““HHT~-..l 1’

E!EmHIIEl

o INPUT

o

r

o

HI-+HH

‘-1

TT

EmI(ml

Mll

‘--cmr”yq-’

E

1

n

v

L

-?

O1--It-iHHHI+ll-IH++

I

I

hJ Mll ‘THTHHH’-2

Likewise, a maximum of six returns can be made if the number of extended lines is one. ●

Circuit symbols to enable an extension during write --it-,

●

++,

—

Circuit symbols to disable an extension during write

W--v-+@,

I ,+>,

--rl-

If any of the symbols is used, an pressed.

“OPERATION o

-74-

ERROR” occurs when

INPUT

is

I

(2) Write example of two or more extended lines

L

J-J

I

&

1

-L

(--

/
4?-

1

~ Write

I

I (vertical line)

1

I

This write example pressing

2

-75-

B@

is complete

by

I 3. 3-6

CREATING LADDER CIRCUIT AND MONITOR OPERATION Circuit Extension Function

(3) Write example of function instruction into return part

m mIEl EEEloml

mmmlzl

[

Write

+iiov-1”-k-io-Iiii3J.. .. . . .. . . . .. .. . .. .. . . ..

This write example

pressing

is complete

EH

i

TO write a function instruction into the return part, once extend by writing - (horizontal line) before writing the function instruction. If the function instruction is directly written, an “OPERATION ERROR” occurs.

-76-

by

3.

CREATING LADDER CIRCUIT AND MONITOR OPERATION

3-6

Circuit Extension Function

(4) Insertion example 1 of a single extended line Ml mM2

M3

M4

MS

o

Wxk

Ml F1 ~M2

o

M3

~M4

M5

s

M6 H-I

BENII13EI

M7

EEEEIE3

T HHH HHHH

‘“S’”

+F?-

HHHHH M8 >

l%

‘:0

!: Ml *2

0

5

‘; M6

hf3

‘2HM4

’15

This insertion example

t---1

‘ressing

is complete

by

EH

r’~

HHH ~{~~

HHMt—————i MMH~ M7

M8

IHH~

).

4

●

The insertion function inserts a contact ,+1~)—~*,— , etc., in the cursor position. If nine contacts (containing a coil) are exceeded, the line is extended as shown above. However, only one return can be made in insertion operation.

e

Circuit symbols to enable an extension during insertion +t--,

●

+,—

Circuit symbols to disable an extension during insertion wP9+*l,-o

-,-H-

If any of the circuit symbols is used, an “OPWTION when ,~Pu7 is pressed.

o

-77-

ERROR” occurs

3.

I3-6

CREATING LADDER CIRCUIT AND MONITOR OPERATION

I

Circuit Extension Function

(5) Insertion example 2 of a single extended line (when more than one coil

-L

‘o Ml o

M2

+1—iHH

M3

M4

AwiH64L

This insertion example

1

M8

pressing

J

‘x~

-78-

IIEIEl

is complete

by

I3. 3-6

CREATING LADDER CIRCUIT AND MONITOR OPERATION

1

Circuit Extension Function

I

(6) Insertion example when function instruction exists in coil part

IEEEHIIEI

~1 ,T Ml

o

M2

EIENEI

T

‘w*&-]

EIEIEI

1

1~

“tiovWio--:-”bio...................... ~

0’

‘-r

Pm I--HI-J Ml

o

M2

M3

1’

M4

This insertion example

H~~

I

by

BB

1 -M;

Note:

is complete

pressing

[iiovh-io-:-b-io-”] . .. . . . . ... . . .. . .. . ... . .. .

or < If a function instruction handled as a contact, such as =,>, exists in the return part, no insertion can be made. If insertion is made, an “OPERATION ERROR” occurs.

-79-

I 3. 3-6

CREATING LADDER CIRCUIT AND MONITOR OPERATION Circuit Extension Function

(7) Insertion example 1 when two or more lines are extended M3 o

M4

M5

M6

M7 +

T

M8 +1

E‘J’: ‘:‘““F ‘IQ(I’

1-

HH

iImIHIIEl

‘“S’” #-

HHH

HHHH#

M56

HHHHH

q M67

M66

HWHHHH H

H

H

H

H“!~!7~7#-

z

H

H

H

H

#!8%8HM8%

3

M96

HHHHHlJ19wg&4

[

+“9

c

This insertion example

‘ressing

~HHHHHlM67

+HHHHHH-2 ---iHHHHHt---%7&3 M87 ~HHHHHH-

4

-+

5

HHHHHd9&

4

M78 3 >—i

M88

F22 J

M98

’32

4 -H

I F33

5HHHl-80-

BE

is complete

by

I 3. 3-6

CREATING LADDER CIRCUIT AND MONITOR OPERATION

t

Circuit Extension Function

(8) Insertion example 2 when two or more lines are extended

o

--11--k

AlHHHt-&i&

W

z

EIEIE3

M58

Q This insertion example

c “es””’

WM58 -81-

BE

is complete

by

3.

I3-6

CREATING IADDER CIRCUIT AND MONITOR OPl?MTION Circuit Extension Function

3-6-2 Error Messages

pn)(qg

EJEmIml

+ An “OPERATION

o

ERROR” occurs.

HHHHH

-i

b

1

T

T

13i

J+

HHHHH

H

EEmlEIEl z

Gi2iz)

4’ A “CIRCUIT CONTINUATION can be made.

ERROR” or “OPERATION

ERROR” occurs. If two or more lines are extended,

-I HHHHHHHH

1

IHHHHHHH~

2

zHHHHHHH+

3

3:

HHHHHH+

4

4+

HHHI—l

HH#

5:HHH:HH+

“CIRCUIT CONTINUATIVE

iEiE)EIEIEl

5 6

SIZE OVER” occurs. The maximum

-82-

only one return

number of returns is eight.

I

3.

CREATING LADDER CIRCUIT. AND MONITOR OPERATION

3-6

Circuit Extension Function

I-%HHH

>

(L

‘

>

>

‘“s’” -2-

>

‘

>

‘

>

‘

>

‘

13 stages x 2 = 26 stages

)- ‘ >‘

“

“LADDER OVER FLOW” occurs. The maximum

number of stages as a result of extension

o -I HHI-IHWW

1 X7

T

2 \ /

1 >—l 2 }—]

T’ If a vertical branch exists at the return start position, a “CIRCUIT CONTINUATION ERROR” occurs during conversion. Program as shown below:

(

‘

:~~

A vertical branch is enabled at this position,

-83-

is 24.

,,.,

,,

3-6-3 Relationship between Number of Returns and Circuit Length The relationship between the number of returns and the maximum length of circuit that can be created at the time is as listed below: (Note) Number of returns Circuit length (stages)

o

1

2

3

4

5

6

7

8

18

11

7

5

4

3

3

2

2

When the limits are exceeded, a “CIRCUIT CRRATION ERROR” occurs. Note:

The maximum number of returns may be six depending — on the onboard function or CNC version.

Example: c

-11--ll-+-l

When the number of returns is two, the circuit length is up to seven lines,

P!Y!Yl Up to 24 stages

-84-

1 3.

I

CREATING LADDER CIRCUIT AND MONITOR OPERATION

I

3-7 Monitoring the Ladder Circuit 3-7 Monitoring the Iadder Circuit The operation state of the sequence circuits can be monitored. The following monitoring functions are available: 1.

Circuit monitoring function

2.

Screen freezing function at monitor stop trigger point

3. Registered device monitoring function 4.

Decimal/hexadecimalcurrent value monitoring function

,,,,

-85-

~

3-7 Monitoring the Ladder Circuit

(1) Screen display structure during monitoring

o1

14-inch CRT display terminal w

80 characters ~

““n’ac’smax

~

112’OO& Y30

18 lines

I

I

I

Nine lines for ladder display

.7, .5 1 m

2507

4

x’

2511, , (2510)

(one line for

+&

)

I(IO

Tl

. . . . . . .. [ . .MOV .. . . .. . l“”b-o--~-iiii-} . . . . . . . .. . ... .. . .. . . .

D

-~--7-r=i6--6i=i6-i-fi5=i66_____________________________ i—-----------.--.--––––

1

10 ---—----—-

--—–-.-–--–-–---–-

-----------------

---

Display for monitoring

_—-_——-—-_--—-— _________________________________

‘-----------------------” Memory Memory (6040/8192 steps) l------------------------–---------—-----------------)

l----------------------------

71ines

I

1

II,

Mode

~--------

I

k ---

CIRCUIT

Function

MONIT

—--—-—-——-------—-

SET

Data

(

-——- -------

—--------------------------------

4-(

1. Read

o 2

2. Write

------

3, Insert

4. Delete

—–—

5. Convt

Mode and functions

)

—--- ——--------

size used and messages

------------

Menu display area

MENL

6. Monit

9-inch CRT display terminal so’h’’’erer’ ~ ~

‘cOn’actsmax”-—

/

/

PLC ladder

‘

“oomy’o’

Six lines for ladder display

be

12 lines

2’07hT’

line for

X O ‘) -lt-

’10’

--------------------------------------------------‘t T1 =10 -------DO=1OO ----------13112=100 —-----10 --- ----------------------

-----------

—------5. CONVT

-----6.

-----MONIT

---------

-_----.--

---------------------

(6040181 92 steps) ?s --- Memory —-- ----------— ------— ---. -----------Mode CIRCUIT Function MONiT SET Data ---------— ----------------------------------------

\

------

Display for monitoring

---

Memory

— ----------(

----------

size used and messages

Mode, functions,

)

and data setting field

-----------MENU

-86-

}

Menu display area

~

3-7 Monitoring the Ladder Circuit

(2) Monitor screen display method

o1 02

An energized circuit and nonenergized circuit are displayed as”follows: Nonenergized circuit:-!!-

-1+

+*+1--

Energized:

-+----

+F+l--

--t-

The monitor screen displays not only the ON/OFF states of the circuits but also the set values and current values of the timer (T, Q), counter “ (C, B), data register (D), and file register (R) contained in the circuits displayed. Up to six values of such symbols from the above of the circuits are displayed in order from left t: -~.ht :- .L- -.->..display section.

Example: Xo m

xl

4

4

t

I

T_2

T2

K1O

A

‘1

...............................

L,, l--

k-----EimHzi:Mliit

d4

‘~:~... .. . .. .. . .. . ..fi-~”H--Mov;”--K;”D~”~” .... . ... . . . . ... .. .. . . .. .. . . .. . . . . ;“~j-j” ~-

T2=1O DO=5 ‘---

1)20=5 R1900=0 C5=2

‘t+--::::,::,” ). If the set value is not a constant but the data register value, the contents of the data register are monitored as the set value. The values set not by a program but by the PLC TIMER screen and PLC COUNTER screen of the machine parameter can be used as the set values of the timer (T) and counter (C), in which case the values set by the screens are displayed as the set values. o

Bit O of BIT SELECT parameter No. 49 is off: the timer value set in PLC TIMER screen is valid.

o

Bit O of BIT SELECT parameter No. 49 is on: in program is valid.

o

Bit 1 of BIT SELECT parameter NQ. 49 is off: set in PLC COUNTER screen is valid.

o

Bit 1 of BIT SELECT parameter No. 49 is on: set in program is valid. -87-

the timer value set

the counter value the counter value

~

Note 2:

3-7 Monitoring the Ladder Circuit

When data in the data register and file register is displayed for monitoring, the system converts the data stored in a binary form from O to 65535 to decimal number. Therefore, if the contents are BCD data, different figures are displayed. Example: o When DO in the ~M6v-!--k9?-;-”D-O~ ............................ circuit is monitored, DO=g9 is displayed. o

men

Do in the

~-BcD.:...-.-...;

-...-...

j--Kgg--:,D,O} circuit is monitored, DO=153 ........is displayed.

o3

The MCR instruction and function instructions are always displayed in the form of { } regardless of the operation states. These are never displayed in -1 }“

3-7-1 Monitoring the Circuit This operation monitors the operation states of the sequence circuits dynamically. Basic operation

H-)=)1

)=)”F)–F)–F)+==+

ODeration DrOCedUIY2 (1) According to the circuit read operation, read the circuit block to be monitored. (2) Pressing 6. MONIT n

displays the operation state of the sequence circuit and the

set and current values of the timer, counter, data register, and file register for monitoring. 0

00

Successively pressing the + and

INPUT

keys enables monitoring the

succeeding circuit. o

To monitor the circuit preceding the one currently displayed, press the After this, the circuit preceding the current one can Band @keys” be monitored sequentially each time ,NW~ is pressed.

o

After pressing the~andmkeys,

pressing the~andmkeys returns to Uu the previous circuit. After this, the succeeding circuit can be u

u

monitored sequentially each time

INFIJT

c1

-8t3-

h

pressed.

3.

CREATING LADDER CIRCUIT AND MONITOR OPEMTION

3-7 Monitoring the Ladder Circuit Example: Read and monitor step No. 10. m“m–m–m-a”BR–m Monitoring

Reading step No, 10.

MO 12 b

M

16 ~

!=~

~-Mov-:--”D-o-”: . . . . . . . . .. . . . . .. .. ...--D2o--. ... . .. . .

T3

Klo 4

DO=1O Memory Mode

D2O=1O T3=1O o

(6040 /8192

CIRCUIT

steps)

Function

MONIT

SET

Data

(

)

(3) Operations on monitoring

o

Read the target circuit by step number and enter monitor mode, switch the monitor screens by pressing the o+ or ~and@keys.

1

oj]–)-,)–b~)

–D-)a~l-@-)=T)

7

I L-

H+E-J-++

o+ [1

--+=J+J...

~

o—

[1

o2

.

.

..

Read the target circuit block by contact, coil number, or instruction, and then enter monitor mode.

q-jpjpj+j-)=)

‘---

--@l”-EHIHEl

Y45

‘“m Ml

50

B

Y20

‘~

t-.——-— — .—— ———-.—-

! ----

-.

——-— —---

-89-

----—-

.

,,

!.,

3.

CREATING LADDER CIRCUIT AND MONITOR OPERATION

3-7 Monitoring the Ladder Circuit

o3

After entering monitor mode, read the target circuit block by step number and then monitor it.

IE9–!E9–DIEWEE)-EIEEI”EI

o4

After entering monitor mode, read the target circuit by contact, coil number, or instruction and then monitor it.

F)–FO–F)–l=)

–EHIl+l+l

r

u -—

-——..——

———

— -—-

— — - —-—-————-

— —-—

_ . -——

.

Note 1: When monitor mode is entered in this way, the screen cannot be switched by pressing the ~or ~and@keys. 3-7-2 Freezing the Screen at Monitor Stop Trigger Point During circuit monitoring, this operation can freeze the monitor screen at the monitor stop trigger point regardless of the PLC operation. Basic operation

J_ uO

IFreezes

— 1

u 0

thescreen

onthefalling

I Freezes thescreen

ontherising

edgeofthe

Wwified

edge of thesp~ified

2 :Freazes thescr~en onbthedgeS ofthespecified

-90-

device signal.

device signal.

device signal.

~ 3. I

CREATING LADDER CIRCUIT AND MONITOR OPERATION

I

3-7 Monitoring the Iadder Circuit Operation procedure (1) According to the circuit monitor operation, monitor the screen to be stoDDed at the trigger point. (2) Press the J~j,Dj),H, the device number, and then press

o

INPUT .

When the specified device changes,

the monitor screen is frozen with the current display kept. (3) TQ release the frozen screen, press

B

again”

Operation conditions (1) Only one trigger point can be specified. If two or more trigger points are specified, the one specified last is assumed. (2) Only the devices used in the OUT or contact instruction can be specified as the trigger point. The trigger point need not be the device displayed on the current monitor screen. If a data register (D) or file register (R) is specified as the trigger point, OPERATION ERROR is displayed in the message display area. (3) The screen may not be frozen if the specified trigger point is included in a high-speed processing circuit such as the one including a pulse instruction. Example: Monitor the circuit according to the circuit monitor operation, then stop the screen when the timer T1 exceeds the given time.

IEE3-D=I-F)”6=-)-EHEHII+I Reading step No. 200.

1 J

1

Monitor

Setting data so that the screen stops when the timer exceeds the given time

mode

200‘‘

xl 4

Xo