Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 317

Auxiliary Area and CIO Area Allocations (Modbus-RTU Slave Mode)
15 14 13
D2000 3
D2001
D2002
Diagnostic
Function
Command
Response
Sending A537 Hex
Write Multiple Coils
Function
Command
Response
288
12 11 10 9
A
Executes an echoback test. Send data will be returned.
Function Code
Sub-function Code
Data
Note From 2 to 125 (2 to 7D hex) bytes can be specified.
Function Code
Sub-function Code
Data
Note Same as in command data.
Request
Function Code
Sub-function Code (H)
Sub-function Code (L)
Data (H)
Data (L)
Writes multiple bits in I/O memory. Allocated memory is in the C10 Area
(fixed).
Function Code
Starting Address
Quantity of Output
Byte Count
Output Value
Function Code
Starting Address
Quantity of Output
8 7 6 5
C
Length
1 byte
2 bytes
N × 2 bytes (See note.)
Length
1 byte
2 bytes
N × 2 bytes (See note.)
Data
08 hex Function Code
00 hex Sub-function Code (H)
00 hex Sub-function Code (L)
A5 hex Data (H)
37 hex Data (L)
Length
1 byte
2 bytes
2 bytes
1 byte
n byte
Length
1 byte
2 bytes
2 bytes
Section 9-3
4 3 2 1
5
Data
08 hex
0 hex
---
Data
08 hex
0 hex
---
Response
Data
08 hex
00 hex
00 hex
A5 hex
37 hex
Data
0F hex
0 to FFFF hex
1 to 3E8 hex
N
n = N or N + 1
Data
0F hex
0 to FFFF hex
1 to7B0 hex
0