ProSoft MVI56-DFCMR | DF1 Master/Slave Network Interface Module

The ProSoft MVI56-DFCMR is a DF1 Master/Slave Communication Module with a Reduced Data Block, designed for ControlLogix PLCs. It enables easy DF1 protocol communication between ControlLogix I/O processors and DF1-compatible devices, such as Rockwell Automation PLCs, power monitoring equipment, and other third-party devices.

This module is ideal for Ethernet and ControlNet applications, particularly when installed in remote racks. It supports full and half-duplex DF1 communication and includes two user-configurable serial ports that can function as either a master or slave.

Key Features

✔ ControlLogix Backplane Compatible (Single Slot – 1756 series)
✔ Local or Remote Rack Compatibility
✔ Efficient Data Transfer using a small I/O data area
✔ Ladder Logic-Based Configuration
✔ DF1 Master & Slave Protocols Supported
✔ Supports 100 Commands Per Master Port
✔ Floating Point Data Movement

Hardware Specifications

Specification	Details
Backplane Current Load	800 mA @ 5V DC, 3mA @ 24V DC
Operating Temperature	0 to 60°C (32 to 140°F)
Storage Temperature	-40 to 85°C (-40 to 185°F)
Shock Resistance	30g (Operational), 50g (Non-Operational)
Vibration Resistance	5g (10 to 150 Hz)
Humidity	5% to 95% (Non-Condensing)
Optical Isolation	500V from backplane
LED Indicators	Module Status, Backplane Transfer, Application Status, Serial Activity

Communication Ports & Connectivity

Port Type	Specifications
CFG Port (RJ45, DB-9M Adapter)	RS-232 (Configuration & Debugging)
PRT1 & PRT2 (Application Ports)	RS-232/485/422, Full Hardware Handshaking
Baud Rate	110 to 115,200 baud
Parity	None, Odd, Even
Data Bits	5, 6, 7, 8
Stop Bits	1 or 2
RTS On/Off Delay	0 to 65,535 milliseconds

✔ Supports Radio, Modem & Multi-Drop Applications
✔ RJ45 to DB9 Adapter Cables Included

Functional Specifications

Full & Half Duplex DF1 Modes Supported
Error Checking: CRC & BCC
Handshaking Control for Radio, Modem, Multi-Drop Support
Supports Storage & Transfer of up to 5000 Registers
Read/Write Commands: 125 words max
Floating Point Data Handling

DF1 Master Protocol Features

Each port can be configured as a Master
SCADA Sub-Master Capabilities
Supports up to 100 Commands Per Master Port
Status Data & Error Codes Available Per Command
User-Configurable Polling (Continuous, On Change, Disabled)

DF1 Slave Protocol Features

Accepts DF1 Commands from DF1 Master Devices
Reads/Writes Data from Internal Registers
Data Easily Transferred to Processor Data Registers

Tested Hardware Connections

The MVI56-DFCMR has been tested with:

✔ RA PanelView (Full Duplex, Point-to-Point, DFCM as Slave)
✔ RA Processors (Full/Half Duplex, DFCM as Master or Slave)
✔ RA Power Monitors (RS-485 Half-Duplex, DFCM as Master)

Contact Us

Phone: +86-15915488782
Email: uma@meloauto.com
WhatsApp: +8615915488782
Business Hours: 24/7 service
Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

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