Product Overview
The ProSoft MVI56-DFCMR is a DF1 Master/Slave Network Interface Module designed for ControlLogix systems. It provides seamless communication between ControlLogix processors and DF1-compatible devices, including Rockwell Automation PLCs, power meters, and SCADA systems.
Moreover, it features a reduced data block design, ensuring efficient data transfer and minimal backplane loading. This module fits a single ControlLogix slot and supports installation in both local and remote racks.
Key Communication Capabilities:
- Supports DF1 full- and half-duplex modes
- Enables two configurable serial ports (RS-232/422/485)
- Compatible with SCADA sub-master operations
- Offers up to 100 commands per master port
- Built-in CRC/BCC error checking for secure data handling
Functional Highlights
The MVI56-DFCMR delivers robust performance for demanding automation systems. Each port can function as a master or slave, supporting flexible network topologies.
In addition, the module’s ladder logic configuration simplifies setup and control within the ControlLogix environment.
Main Advantages:
✔ Efficient use of I/O memory for reduced system load
✔ Handles up to 5,000 registers for data storage and transfer
✔ Supports floating-point data movement
✔ Fully isolated communication ports (500V isolation)
✔ Comprehensive LED indicators for status monitoring
✔ Ideal for radio, modem, or multi-drop network applications
Technical Specifications
| Specification | Details | 
|---|---|
| Backplane Current Load | 800 mA @ 5V DC, 3 mA @ 24V DC | 
| Operating Temperature | 0–60°C (32–140°F) | 
| Storage Temperature | -40–85°C (-40–185°F) | 
| Shock Resistance | 30g (Operational), 50g (Non-Operational) | 
| Vibration | 5g (10–150 Hz) | 
| Humidity | 5–95% (Non-Condensing) | 
| Optical Isolation | 500V (Backplane) | 
| Ports | 1 × CFG (RS-232), 2 × RS-232/422/485 | 
| Baud Rate | 110–115,200 baud | 
| Parity / Data Bits / Stop Bits | None/Odd/Even; 5–8 bits; 1–2 stops | 
| RTS Delay | 0–65,535 ms adjustable | 
Furthermore, the included RJ45-to-DB9 adapters simplify physical connection to existing DF1 devices.
System Integration
This module integrates seamlessly with ControlLogix PLCs through the backplane. It is compatible with major Rockwell DF1 implementations and third-party serial devices.
For instance, users can link it to RA PanelView terminals, Allen-Bradley power monitors, or legacy SLC/PLC-5 controllers via full or half-duplex channels.
Therefore, it is ideal for Ethernet, ControlNet, and remote rack environments where DF1 data exchange is critical.
Tested Interoperability:
- RA PanelView (Full Duplex, DFCM as Slave)
- RA Processors (Full/Half Duplex, DFCM as Master or Slave)
- RA Power Monitors (RS-485 Half Duplex, DFCM as Master)
Details
| Weight | 0.4 kg | 
|---|


 
 
 
 
Reviews
There are no reviews yet.