Chapter 8 Logic Instructions
8-257
Output Update Timing Chart
Execute
Done
Error
ErrorID
Case 1
Case 2
Case 1： When Execute changes from FALSE to TRUE, DONE changes from FALSE to TRUE.
Case 2： When an error occurs as Execute changes from FALSE to TRUE, Error changes to TRUE and
ErrorID shows corresponding error codes. Error changes to FALSE when Execute changes
from TRUE to FALSE.
Function
The RS485_SetDelayTime instruction is used to set the response-delay time of the controller RS485
communication port. The setting time is valid when the RS485 communication port of the controller serves as
a master or slave.
When RS485 communication port works as a master, it will not send a next message until the set delay time
elapses after receiving the response data from the slave. When the RS485 communication port works as a
slave, it will not reply to the master until the set delay time elapses after receiving the data from the master.
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