750-841 WAGO, 750-841 Datasheet - Page 165

• Manufacturer Part Number: 750-841
• Description: CONTR.ETHERNET TCP/IP 10/100MBIT
• Manufacturer: WAGO

Specifications of 750-841

• Rohs Compliant: YES
• No. Of Digital Inputs: 10
• No. Of Digital Outputs: 10

4.2.3.5 Function Code FC5 (Write Coil)
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
This function writes a single output bit to the slave device.
Request
The request specifies the reference number (output address) of output bit to be
written. The reference number of the request is zero based; therefore, the first
coil starts at address 0.
Example: Turn ON the second output bit (address 1):
Response
Exception
Byte
Byte 0, 1
Byte 2, 3
Byte 4, 5
Byte 6
Byte 7
Byte 8, 9
Byte 10
Byte 11
Byte
.....
Byte 7
Byte 8, 9
Byte 10
Byte 11
Byte
.....
Byte 7
Byte 8
Value
Field name
Transaction identifier
protocol identifier
length field
unit identifier
MODBUS function code
reference number
ON/OFF
Field name
MODBUS function code
Reference number
Field name
MODBUS function code
Exception code
Example
0x0000
0x0000
0x0006
0x01 not used
0x05
0x0001
0xFF
0x00
Example
0x05
0x0001
0xFF
0x00
Example
0x85
0x01, 0x02 or 0x03
Fieldbus Communication
MODBUS Functions
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