Omron E5CN-H Communications Manual

Modbus
5.4 Detailed Description of the Services
5-13
Response Code
◆ Writing Undisplayed Parameters
It is possible to write the parameters that are not displayed due to
display settings as well as the parameters that are never displayed in
the Controller.
Example Command and Response
The following example shows the command/response when writing the
Alarm Value Upper Limit 1 and Alarm Value Lower Limit 1 parameters.
(In this case, the slave address is H’01.)
Four-byte Mode
Alarm Value Upper Limit 1
• Address: H'010A; Write data: H'000003E8 (when 1000)
Alarm Value Lower Limit 1
• Address: H'010C; Write data: H'FFFFFC18 (when −1000)
Two-byte Mode
Alarm Value Upper Limit 1
• Address: H'2105; Write data: H'03E8 (when 1000)
Alarm Value Lower Limit 1
• Address: H'2106; Write data: H' FC18 (when −1000)
Function
code
Error
code
Error name Cause
H'90 H'02 Variable address error The write start variable address is incorrect.
• The variable area number is incorrect.
H'03 Variable data error ◆ The amount of data does not match the
number of elements.
◆ The byte count is not 2 times the num-
ber of elements.
◆ The write data is out of the setting
range.
H'04 Operation error The Controller cannot write the data in its
present operating status.
The write data contents are not allowed in
the present operation mode.
◆ The Communications Writing parame-
ter is set to “OFF” (disabled).
◆ Attempted to write to a parameter in
setup area 1 from setup area 0.
◆ Attempted to write to a protect parame-
ter from other than the protect level.
◆ AT execution in progress
H'10 --- Normal completion No errors were found.
Command:
Response:
01
01 10
10 01 0A 00 04
00 00 03 E8 8D E9(CRC-16)
E0 34(CRC-16)
01 0A 00 04 08 FF FC 18FF
Command:
Response:
01
01 10
10 21 05 00 02
03 E8
01 05 21 02 04 FC 18
5B F5 (CRC-16)
66 BB (CRC-16)

Omron E5CN-H Specifications

General

Brand	Omron
Model	E5CN-H
Category	Controller
Language	English