Modbus Master/Slave Communication Module MVI94-MCM

　　Functional Specifications MVI94-MCM

　　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

　　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

MVI94_MCM_Datasheet.pdf

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