Description
The ProSoft MVI56-MCM is a Modbus Master/Slave enhanced communication module designed for the Allen-Bradley ControlLogix platform. It allows the processor to interface easily with Modbus RTU/ASCII devices, such as power monitors, drives, and PLC systems, through two independently configurable serial ports.
Product Parameters
- Model Number: MVI56-MCM
- Platform: Allen-Bradley ControlLogix (1756)
- Ports: Two (2) RS-232, RS-422, or RS-485 ports
- Protocols: Modbus RTU and Modbus ASCII
- Baud Rate: 110 to 115,200 bps
- Backplane Current: 800 mA @ 5V DC; 3 mA @ 24V DC
Product Specifications
- Configuration: User-defined via configuration file or ladder logic
- Data Transfer: Block transfer or Side-Connect communication
- Isolation: 2500V optical isolation on serial ports
- Status LEDs: Module Status, Backplane Transfer, and Port Activity
- Max Commands: Up to 100 commands per port in Master mode
Application Areas
- Remote I/O communication in factory automation
- SCADA system integration for power distribution
- Variable Frequency Drive (VFD) monitoring
- HVAC and building management system control
- Inter-PLC data exchange in multi-vendor environments
Product Q&A
Q: Can the MVI56-MCM act as a Modbus Master and Slave simultaneously? A: Yes, each of the two ports is independently configurable, allowing one to be a Master while the other acts as a Slave.
Q: Is a separate power supply required for this module? A: No, it draws its operating power directly from the ControlLogix backplane.
Q: What is the maximum cable distance for RS-485 connections? A: Under standard conditions, RS-485 can support cable lengths up to 4,000 feet (1,200 meters).
