53
2017/06
10.2 Implemented Modbus Functions
The TBEN-L stations for Modbus TCP support the following functions for accessing process data,
parameters, diagnostics and other services.
Function codes
No. Function
Description
1
Read Coils
Reading multiple output bits.
2
Read Discrete Inputs
Reading multiple input bits.
3
Read Holding Registers
Reading multiple output registers.
4
Read Input Registers
Reading multiple input registers.
5
Write Single Coil
Writing a single output bit.
6
Write Single Register
Writing a single output register.
15
Write Multiple Coils
Writing multiple output bits.
16
Write Multiple Registers
Writing multiple output registers.
23
Read/Write Multiple Registers
Reading and writing of multiple registers