Supported Industrial Ethernet Protocols

Modbus TCP

The VIM2 with the Modbus TCP Driver supports the

following Modbus communications protocol function codes

to read and write values to and from Modbus devices,

as specified by the Modbus Application Protocol

Specification from Modbus-IDA.org. This driver emulates

Programmable Serial cards on the DeltaV I/O Bus.

The VIM2 Modbus TCP/IP Driver supports the following

Modbus function codes:

Code 8 – Diagnostic Loop Back Test

Code 15 – Force Multiple Coils

Code 16 – Preset Multiple Registers

The VIM2 can function as both a Modbus TCP master

and slave simultaneously. Master or slave mode is set

at the virtual port level. The master and slave capability

are available in simplex implementations; in redundant

applications, only master mode is supported.