1. Overview
The MVI56E-MCMR is part of ProSoft Technology’s MVI56E series, designed as an enhanced communication interface module for the ControlLogix platform. It plugs directly into a 1756 chassis, replacing traditional I/O modules, and provides flexible Modbus master/slave communication capabilities.
2. Key Parameters & Technical Specifications
Interface Types:
Dual RS‑232 serial ports (supporting RS232/RS485/RS422) and one RJ45 Ethernet port.
Protocol Support:
Modbus RTU/ASCII, plus compatibility with Modbus TCP/IP, EtherNet/IP, DF1, ASCII, DH‑485, and other major industrial communication protocols.
Communication Speed:
Baud rates configurable from 110 bps to 115.2 kbps, with support for high‑speed transfers up to 921600 bps.
Power Requirements:
5V or 24V DC input (depending on model), ultra‑low power consumption (approximately 2W), and compatible with 800 mA backplane power.
Operating Environment:
Industrial‑grade wide temperature range from -40°C to 85°C.
3. Product Features
Enhanced Communication Performance
Utilizes Reduced Data Block (RDB) technology to minimize backplane bandwidth usage, enabling more efficient data transfer—especially suitable for ControlNet network scheduling.
High Flexibility
Two serial ports are independently configurable as master or slave, and can operate simultaneously on different Modbus networks.
Easy Integration
Configured via ProSoft Configuration Builder (PCB) software, supporting fast setup and remote diagnostics from a PC.
Industrial‑Grade Reliability
Robust metal housing designed to withstand harsh industrial environments.
4. Structure & Components
Physical Structure:
Single‑slot module, typically mounted via DIN rail, and plugs directly into the 1756 chassis backplane.
Internal Components:
Includes dual serial communication chipsets, an Ethernet controller, an embedded microprocessor, and non‑volatile memory for storing configuration parameters.
5. Application Areas
Industrial Automation
Connects field instruments, sensors, and actuators such as valves, pumps, and variable frequency drives (VFDs).
Process Control
Ideal for data acquisition and monitoring in oil, gas, chemical, and power industries.
Remote I/O
Extends PLC I/O range over Ethernet or serial buses, enabling seamless remote I/O integration.
6. Installation & Maintenance
Installation Requirements:
Requires an Allen‑Bradley ControlLogix processor, an available slot, and sufficient backplane power (typically 5V/800mA). Verify chassis model and power specifications before installation.
Configuration Steps:
- Insert the module into the chassis backplane.
- Use ProSoft Configuration Builder (PCB) to set parameters such as port mode (master/slave), baud rate, and address.
- Configure the module’s input/output assembly instances in RSLogix 5000 or Studio 5000.
Maintenance Recommendations:
Regularly inspect communication lines (complying with RS‑485/RS‑422 standards) and ensure configuration parameters match field devices. Use PCB software for remote diagnostics and troubleshooting.

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If you would like to learn more about our products and services, please feel free to contact us at any time!
- Sales Manager : Jinny
- Email : sales5@xrjdcs.com
- Whatsapp/Mobile:+86 15359273791
Global renowned brand cooperation
ABB 丨 GE 丨Allen Bradley 丨 Honeywell 丨 Emerson 丨 Bently Nevada 丨 Westinghouse
Triconex 丨 Foxboro 丨 ICS Triplex 丨 Hima 丨 Schneider 丨 Yokogawa 丨 Woodward
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Xiamen Xingruijia Export Co., Ltd. Product Introduction & Service Commitments
Covered Brand Portfolio
Main Products of the Company: Brands including FOXBORO, EMERSON, TRICONEX, XYCOM, BENTLY, ROCKWELL, ABB, GE, Aen-Brady, YOKOGAWA, HONEYWELL, RELIANCE, SCHNEIDER, MODICON, Westinghouse, WOODWARD, Motorola, Rexroth, SEW, etc.
Core Business Scope
Core Business Scope: Spare parts for four major systems (DCS, PLC, Robots, and Large Servos) of various well-known brands. (100% original imported genuine products, professional supply of discontinued accessories)
Xiamen Xingruijia Export Co., Ltd. sincerely hopes to establish long-term and stable business relationships with various units. We are committed to supplying various specifications and models of instruments and meters, contributing to the development of business partners with high-quality and low-cost products and excellent after-sales service.
Service Commitments
A. Product Quality & Pricing Commitment
We wholeheartedly provide customers with products of stable quality and satisfactory after-sales service. On the premise of ensuring product quality, we strive to supply products at reasonable and low prices.
B. Production Standard & Service Life Guarantee
We organize supply in accordance with national standards or industry standards to ensure that product quality meets relevant requirements. Under correct usage conditions, the service life of our products will not be lower than that of other similar products.
C. Professional Product Selection Guidance
We assist customers in scientifically and reasonably selecting product types, specifications and models.
D. Efficient Delivery Assurance
We guarantee timely delivery. Under normal circumstances, goods will arrive within 6 working days; in special cases, the delivery time will be negotiated according to customer needs.
E. After-sales & Warranty Terms
Since all goods are produced by original foreign manufacturers, the after-sales service is provided by the manufacturers. The warranty period generally ranges from six months to one year, and the specific warranty period shall be subject to that provided by the original factory. In case of product quality problems, if both parties confirm that the problem is caused by the manufacturer’s quality, we will send the product back to the original manufacturer for repair or other necessary treatments.
Company Strength & Cooperation Concept
The company has strong strength, complete equipment, perfect testing methods, reliable quality and superior performance. Adhering to the tenet of putting users first, we insist on strict delivery deadlines, reasonable price standards, excellent product quality and proper after-sales service. We have long-term, sincere and effective cooperation with a large number of new and old users. Our products have demonstrated reliable performance and distinctive advantages, winning the trust and welcome of customers.
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