Emerson M-series Virtual I/O Module 2 Modbus TCP

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.

FMC722 Subsea

The VIM2 with the FMC722 Driver supports

communications with FMC Technologies Topside Processing

Unit (TPU) using the FMC722 (TPC) protocol.

Code 1 - Read Coil Status

Code 2 - Read Input Status

Code 3 - Read Holding Registers

Code 4 - Read Input Registers

Code 5 - Force Single Coil

Code 6 - Preset Single Register

Rockwell PLC Scanner

The VIM2 with the Rockwell PLC Scanner Driver provides

the following compatible functions using the Common

Industrial Protocol (CIP) as defined in the EtherNet/IP

Specification from Open DeviceNet Vendor Association

and ControlNet International. This driver emulates

Programmable Serial cards on the DeltaV I/O bus.

The VIM2 EtherNet/IP Scanner Driver provides:

IO Adapter (Transport Class 1 target, using connected

implicit messaging). Supported in simplex or

dual simplex configurations.

Unconnected explicit (UCMM) messaging client

Embedded DF1 (PCCC). Supported in simplex,

dual simplex, and redundant configurations.