Modbus Rtu Response Format - Panasonic AFP7CPS4E User Manual

Specifications

11.4.2 MODBUS RTU Response Format

 Response in normal status
 The same message as a command is returned and for a loop back test.
 A part of a command message (6 bytes from the beginning) is returned for multiple write
command.
 Response in abnormal status
In case a parameter disabled to be processed is found in a command (except transmission
error)
Slave address (station no.)
Function code + 80H
Error code
CRC
 Error code contents
1. Function code abnormality
2. Device No. abnormality (out of range)
3. No. of devices abnormality (out of range)
11-14
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Either 1, 2 or 3