Omron E5AN Communications Manual

Modbus
SECTION 5 Modbus Communications Procedure
5-14
■ Variable Write, Single/Operation Command
This function performs operations such as writing to the variable area
(single) and operation commands (communications writing, RUN/STOP,
multi-SP, AT execute/cancel, write mode, save RAM data, software
reset, move to setup area 1, move to protect level, auto/manual switch,
initialize settings, alarm latch cancel, invert direct/reverse operation,
and program start.)
Writing is enabled in only the 2-byte mode.
Command Frame
Response Frame
(1) Write variable address
Specify the address of the setting data that is to be written. For details
on addresses, refer to Section 6 Communications Data for Modbus.
For an operation command, specify 0000 or FFFF.
(2) Command Code and Related Information
Command
code
Command content Related information
00 Communications writ-
ing
00: OFF (disabled)
01: ON (enabled)
01 RUN/STOP 00: Run
01: Stop
02 Multi-SP 00: Set point 0
01: Set point 1
02: Set point 2
03: Set point 3
03 AT execute/cancel 00: AT cancel
01: 100% AT execute
02: 40% AT execute
04 Write mode 00: Backup mode
01: RAM write mode
05 Save RAM data 00
06 Software reset 00
07 Move to setup area 1 00
08 Move to protect level 00
09 Auto/manual switch 00: Automatic mode
01: Manual mode
CRC-16
11 2 2
H'06
Write data
2 bytes
Slave
address
Function
code
Write variable
address
CRC-16
11 2 2
H'06
Write data
2 bytes
Slave
address
Function
code
Write variable
address

Omron E5AN Specifications

General

Brand	Omron
Model	E5AN
Category	Temperature Controller
Language	English