Variable Write, Single/Operation Command - Omron E5AN Communications Manual

SECTION 5 Modbus Communications Procedure

■ Variable Write, Single/Operation Command

5-14
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
Slave Function Write variable
address code address
H'06
1 1 2
Response Frame
Slave Function Write variable
address code address
H'06
1 1 2
(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
Command content
code
00 Communications writ-
ing
01 RUN/STOP
02 Multi-SP
03 AT execute/cancel
04 Write mode
05 Save RAM data
06 Software reset
07 Move to setup area 1
08 Move to protect level
09 Auto/manual switch
Write data CRC-16
2 2 bytes
CRC-16
Write data
2
2 bytes
Related information
00: OFF (disabled)
01: ON (enabled)
00: Run
01: Stop
00: Set point 0
01: Set point 1
02: Set point 2
03: Set point 3
00: AT cancel
01: 100% AT execute
02: 40% AT execute
00: Backup mode
01: RAM write mode
00
00
00
00
00: Automatic mode
01: Manual mode