③During initial communication (start-up of the system) Check the error code of master station

·When the master station indicates error code BF(H)

The cause may be a parameter setting error of the master station. Check the master station parameters.

(See the next page)

· When the master station indicates error code C1 to FF(H)

The cause may be a error of slave station. Check the error code of slave station.

· When the COMM lamp of master station is OFF (SD, RD, and CD are flickering)

 

Check the following master station’s parameters

 

 

 

 

 

 

 

 

 

 

Parameter address

 

Contents

 

Setting value

 

 

 

 

 

 

 

 

 

 

 

003777(8)

 

Start switch

 

01

 

 

 

 

 

 

 

 

 

 

· Other cases

 

 

 

 

 

 

Check the switches of the communication module

 

 

Check optional cable of PC (The PC does not operate normally without an optional cable.)

 

 

Check cable and connector

 

 

 

 

 

Check error code

 

 

 

 

 

 

 

 

 

 

 

 

Check the error code of slave station

 

 

 

 

· When the error code of slave station is no display and FAULT lamp is ON

 

 

The cause may be error of wiring. Check for wiring.

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

· When the slave station indicates error code 93(H) to 95(H)

 

 

When the slave station indicates error code 9F(H)

 

· The cause may be a parameter setting error of the slave station.

 

 

Check the slave station parameters.

 

 

 

 

· When relation I/O is error

 

 

 

 

 

 

Check I/O and rack panel.

 

 

 

 

 

· Other cases

 

 

 

 

 

 

Check the switches of the communication module

 

 

Check optional cable of PC (The PC does not operate normally without an optional cable.)

 

 

Check cable and connector

 

 

 

 

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