Description
Description
The ProSoft MVI56-MCMR is a specialized Modbus Master/Slave communication module designed for the Rockwell Automation ControlLogix platform. It is specifically optimized for remote chassis applications, such as those utilizing ControlNet, where bandwidth optimization is critical. By utilizing a reduced 42-word Input/Output image, the MVI56-MCMR minimizes bandwidth impact compared to standard modules, making it an ideal choice for complex, distributed control systems.
Features
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Optimized for Remote Racks: Designed for ControlNet and remote chassis environments to reduce bandwidth consumption.
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Dual Serial Ports: Features two configurable serial ports supporting RS-232, RS-422, and RS-485 physical standards.
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Flexible Baud Rates: Supports communication speeds ranging from 110 baud up to 115,200 baud.
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Configuration: Configured via ProSoft Configuration Builder (PCB) with integration into RSLogix 5000 using Add-On Instructions (AOI).
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Visual Diagnostics: Integrated LED indicators provide real-time status updates for communication and module health.
Applications
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Oil and Gas: Data acquisition for pipelines and offshore platform monitoring.
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Water and Wastewater: Managing data exchange between control systems and remote monitoring stations.
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Food Processing: Integration of automated production line equipment.
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Mining, Pulp, and Paper: Connecting legacy serial equipment to modern ControlLogix architectures.
Technical Specifications
| Model |
MVI56-MCMR |
| Backplane Current (5 VDC) |
800 mA |
| Backplane Current (24 VDC) |
3 mA |
| Operating Temperature |
0 to 60 degC |
| Slot Requirements |
1 Slot |
| Communication Standards |
RS-232, RS-485, RS-422 |
| Baud Rate |
110 to 115,200 bps |
| I/O Mapping |
42-word reduced image |
Installation Guidelines
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Power Off: Always remove power from the ControlLogix chassis before inserting or removing the module to prevent electrical damage.
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Slot Placement: The module occupies one slot in the ControlLogix rack. Ensure it is seated firmly and the locking tab is engaged.
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Jumper Configuration: Physical serial standards (RS-232/422/485) are selected via jumpers located at the bottom of the module. Ensure these are set correctly before installation.
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Wiring: Use a minimum phase wire size of 1.3 mm squared. Ensure proper shielding for serial cables to minimize EMI in industrial environments.
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Grounding: Follow standard industrial grounding practices for the chassis to ensure signal integrity.
FAQ
What is the primary difference between MVI56-MCM and MVI56-MCMR?
The MVI56-MCMR is optimized for remote chassis applications by using a reduced 42-word I/O image to save bandwidth, whereas the MVI56-MCM uses a larger 250-word image. Additionally, the MCMR does not support the Modbus Pass-Thru feature.
How is the module configured?
The MVI56-MCMR is configured using an offline file created in ProSoft Configuration Builder (PCB) and integrated into the processor using Add-On Instructions (AOI) within RSLogix 5000.
Can I prevent data loss during a power cycle?
Yes, you can use the Initialize Input Image parameter to cache values from the processor so they are not reset to zero during a module reset or power loss.
