Omron E5AR-T User Manual page 217

Section 7 Modbus Communications
Response
7-16
Operation Description
code
H'0C Alarm Latch
Cancel
H'0D SP Mode
H'12 Hold
H'13 Advance
H'14 Back
*1: Executed for all channels.
*2: Specify the channel.
0: CH1, 1: CH2, 2: CH3, 3: CH4, F: All channels
Note: When all channels is specified, only enabled channels will
respond and processing will begin from channel 1. If an error is
detected on any one channel, an operation error will occur. If all
channels end normally, a normal end will occur.
Response Frame
Slave Function Write start
address code address Write data
H'06 H'00 H'00
1 1 2
Data name
Slave address The value from the command frame appears here.
This is the received function code.
In an error response frame, "H'80" is added to the
received function code to indicate that it is an error
Function code
response.
Example: Received function code = H'06
Beginning Beginning address of write that was received.
address of write
Written data Received operation command data.
This is the check code calculated from the slave address
through the end of the data. For the calculation method,
CRC-16
refer to Example of CRC-16 Calculation in 7.2 Frames
(P. 7-4).
Related information
Upper Byte Lower Byte
H'0 to 3, F *2 H'0
H'0 to 3, F *2 H'0: PSP, H'1: RSP, H'2: FSP
H'0 to 3, F *2 H'0: Hold Cancel
H'1: Hold
H'0 to 3, F *2 H'0
H'0 to 3, F *2 H'0
CRC-16
2 2
Description
Function code in error response frame = H'86