Description

Prosoft Modbus Master Slave Communication Module MVI94-MCM

• Extended Product Type : ASCII

• Product ID: MVI94-MCM

• Prosoft Type Designation : ASCII

Features and Benefits

• Support for the storage and transfer of up to 5000 registers to/from the Flex processor’s data files
• User-definable module memory usage
• Application port can emulate Modbus master or slave device
• Supports Enron version of Modbus protocol for floating point data transactions

Specification

Slave Specifications

The MVI94-MCM accepts Modbus function code commands of 1, 2, 3, 4, 5, 6, 15 and 16 from an attached Modbus master unit. A port configured as a Modbus slave permits a remote master to interact with all data contained in the module. This data can be derived from other Modbus slave devices on the network, through a master port, or from the Flex processor.

Master Specifications

A port configured as a virtual Modbus master device on the MVI94-MCM actively issues Modbus commands to other nodes on the Modbus network. One hundred (100) commands are supported on each port. Additionally, the master port has an optimized polling characteristic that polls slaves with communication problems less frequently. The Flex processor can be programmed to control the activity on the port by actively selecting commands from the command list to execute or issuing commands directly from the ladder logic.

General Specifications

Some of the general specifications include:

• Operation via simple ladder logic
• Complete setup and monitoring of module through Debug port and user configuration file
• Flex backplane interface via I/O access