7.5 PLC Side Setting

The GOT operates under the following transmission specifications when it is connected to a Mitsubishi PLC in the computer link connection.

Transmission specifications

Setting

Data bit

8bits

 

 

Parity bit

Yes (Odd)

 

 

Stop bit

1bit

 

 

Sum check

Yes

 

 

Transmission speed

Set the same transmission speed on

(Baud rate)

both the GOT and the PLC.

 

 

The PLC side settings (the serial communication module, computer link module) are explained in Section 7.5.1 to Section 7.5.3.

Model

 

Refer

 

to

 

 

 

QJ71C24N,

 

 

QJ71C24

 

Serial communication module

 

 

QJ71C24N-R2,

7.5.1

(Q Series)

QJ71C24-R2

 

 

 

 

 

 

 

QJ71C24N-R4

 

 

 

 

Modem interface module

QJ71CMO,

7.5.1

QJ71CMON

 

 

 

 

 

Serial communication module

LJ71C24,

7.5.1

(L Series)

LJ71C24-R2

 

 

 

 

 

AJ71QC24N,

 

 

AJ71QC24

 

 

 

 

 

AJ71QC24N-R2,

 

 

AJ71QC24-R2

 

 

 

 

 

AJ71QC24N-R4,

 

Serial communication module

AJ71QC24-R4

7.5.2

(QnA Series)

 

A1SJ71QC24N1,

 

 

 

 

A1SJ71QC24N,

 

 

A1SJ71QC24

 

 

 

 

 

A1SJ71QC24N1-R2,

 

 

A1SJ71QC24N-R2,

 

 

A1SJ71QC24-R2

 

 

 

 

 

AJ71UC24

7.5.3

 

 

 

 

A1SJ71UC24-R2,

 

 

A1SJ71UC24-PRF,

7.5.3

 

A1SJ71C24-R2,

 

 

 

A1SJ71C24-PRF

 

Computer link module

 

 

A1SJ71UC24-R4,

7.5.3

 

 

A1SJ71C24-R4

 

 

 

 

 

 

A1SCPUC24-R2

7.5.3

 

 

 

 

A2CCPUC24,

7.5.3

 

A2CCPUC24-PRF

 

 

 

 

 

7.5.1Connecting serial communication module (Q, L Series)

POINT

(1)Serial communication module (Q, L Series)

For details of the serial communication module (Q, L Series), refer to the following manual.

Q Corresponding Serial Communication

Module User’s Manual (Basic)

MELSEC-L Serial Communication Module

User's Manual (Basic)

(2)Modem interface module

For details of the modem interface module, refer to the following manual.

Modem Interface Module User's Manual

[Intelligent function module switch setting] on GX Developer

[The intelligent function module switch setting] on GX Developer is not necessary. (When no [intelligent function module switch setting] is made, the module runs in the GX Developer connection mode.)

A module can be also connected to a GOT by making the following [intelligent function module switch setting] on GX Developer.

(1) When connecting to the CH1 side

 

 

Bit

 

 

 

 

Set

Switch

Positi

Specifi

 

Description

 

 

 

value*3

No.

on

ed

 

 

 

 

 

value

 

 

 

 

 

 

 

 

 

 

 

 

 

b0

OFF

 

Operation

 

 

 

 

 

setting

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b1

OFF

 

Data Bit

 

 

 

 

b2

OFF

 

Parity Bit

 

 

 

 

b3

OFF

 

Even/Odd

 

 

 

 

 

parity

 

 

 

 

 

 

CH1

 

 

 

 

 

 

 

 

(Operates

 

 

b4

OFF

Stop bit

 

 

 

 

 

transmiss

 

 

according

 

 

 

 

Sum

 

 

Switch 1

b5

OFF

ion

check

 

to the GOT

0000H

settings*1

 

 

 

code

 

side

 

 

 

 

 

 

specificatio

 

 

 

 

 

Write

 

 

 

b6

OFF

 

during

 

ns.)

 

 

 

 

 

RUN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Setting

 

 

 

 

b7

OFF

 

modifica-

 

 

 

 

 

 

 

tions

 

 

 

 

 

 

 

 

 

 

 

 

b8 to

―

CH1 transmission

 

 

 

 

b15

speed setting*2

 

 

 

 

 

 

 

 

 

 

 

CH1 Communication

 

GX

 

Switch 2

 

―

 

Developer

0000H

 

protocol setting

 

 

 

 

 

connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Switch 5

 

―

Station number setting

 

0th station

0000H

7 - 22

7. COMPUTER LINK CONNECTION

 

7.5 PLC Side Setting