Omron E5AR-T User Manual page 215

Section 7 Modbus Communications
● Response Codes
● Writing Non-display Data
7-14
Function Error
Error name
code code
Variable
H'02
address error
Variable data
H'03
error
H'90
Operation
H'04
error
H'10 Normal end
It is possible to write set values even if they are set to not be displayed
or are not displayed due to the model. Exercise caution when writing
continuously.
Command/Response Example
Writing the SP Setting Upper Limit and SP Setting Lower Limit param-
eters in the Control Initial Setting Level for channel 1. (Slave address:
H'01)
SP Setting Upper Limit for Channel 1
Address: H'0D1E
Data written: H'00002710 (1000.0°C)
SP Setting Lower Limit for Channel 1
Address: H'0D20
Data written: H'FFFFFC18 ( 100.0°C)
Command: 01 10 0D 1E
Response: 01 10
0D 1E
Cause
Error in write start address.
• Number of elements and number of
data items do not agree.
• Number of elements times 2 does
not agree with byte count.
• Write data exceeds the setting
range.
The operating status does not permit
writing. The settings for the write data
are not permitted in the current oper-
ating mode.
• The communications writing
function is disabled.
• Attempted to write to set values in
setting area 1 from setting area 0.
• Attempted to write to Protect Level
set values from another level.
• AT is being executed.
• The program number was changed
during programmed operation.
• User calibration is in progress.
• Unit error, unit change, display unit
error, or EEPROM error.
No error
FF FF FC 18 (CRC-16)
00 04 08 00 00 27 10
(CRC-16)
00 04