Panasonic GT703, User Manual

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Connection with PLC
4-28
4.4.6 Precautions When Communicating With RS485
When communication with the RS485, the transmission line for sending and receiving
data is the same.
(1) Time taken until the connected device sends a response after sending a command
from the GT:
If a response is sent too quickly, the GT may not be able to receive it.
Adjust the time if necessary.
For our FP series FPsigma or FP-X, the time can be specified using the SYS1 instruction.
(2) Time taken until the GT sends a next command after receiving a response:
If a command is sent to quickly, the connected device may not be able to receive it.
The time can be specified in the delay time setting for transmission in the communication
parameter of the GTWIN configuration setting.