Modbus-Tcp Functions - Anybus CompactCom 40 Modbus-TCP Network Manual

Modbus-TCP Functions

5 Modbus-TCP Functions
The following Modbus-TCP functions are implemented in the module:
# Function
1 Read Coils
2 Read Discrete Inputs
3 Read Holding Registers
4 Read Input Registers
5 Write Single Coil
6 Write Single Register
15 Write Multiple Coils
16 Write Multiple Registers
23 Read/Write Multiple Registers
43/14 Read Device Identification
Exception Codes:
Code Name
0x01 Illegal function
0x02 Illegal data address
0x03 Illegal data value
See also...
Modbus Host Object (FAh), p. 41
®
Anybus CompactCom ™ 40 Modbus-TCP
Description
The function code in the query is not supported
The data address received in the query is outside the initialized memory
area
The data in the request is illegal
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Transparent Ethernet Network Guide
16 (70)
SCM-1202-022 1.1