Prosoft MVI46-MCM Communication Module

• Brand
  Prosoft
• Model
  MVI46-MCM
• Product Name
  SLC Modbus Master/Slave Communication Module
• Place of Origin
  United States
• HS Code
  85389099
• Dimensions
  120mm × 85mm × 25mm
• Weight
  0.25kg
• Operating Temperature
  -40℃ to +60℃
• Storage Temperature
  -40℃ to +85℃
• Power Supply
  24VDC
• Warranty
  12 MONTH
• Product Status
  NEW AND ORIGINAL

Backed by abundant in-stock inventory and nearly 20 years of industry experience, our company stands as a leading player in the industrial control sector.We offer an extensive range of industrial control products covering numerous models. Should you have any other requirements, please feel free to contact us, and we will respond to you promptly.

Our main brand:

1.ABB's module cards, touch screens, controllers, etc., such as PP846 touch screen, IGCT starting with 5SHY, PM starting controller, AI, DO starting input/output module, SP starting Bailey module, etc

2.GE's module card CPUs, such as VMIC starter, IS200, IS215, IS400, IS420 series, etc,

3.Emerson's card components and EPRO probes, Westinghouse 1C series, Honeywell CC series, Schneider 140 series, Envision full series, Bentley 3500 series, Rexroth motors and drives, and Foxboro small modules.

1. Backplane Power Supply

Operating voltage: 5.1 VDC, powered exclusively by the SLC 500 rack backplane.

Typical operating current: 800 mA at 5.1 VDC.

Power supply standard: The rack power source must comply with Class 2 requirements.

2. Electrical Parameters of Serial Ports (RS232 / RS422 / RS485)

RS-232 Debug Port

Signal level: ±12 V;

Quiescent current under idle status: ≤5 mA;

Short-circuit protection current limit: 30 mA.

Dual Independent RS422 / RS485 Channels

Differential output voltage: 1.5 V ~ 5 V;

Short-circuit limiting current of driving terminals: 250 mA;

Input impedance of receiving terminals: ≥12 kΩ;

Permissible common-mode voltage range: -7 V ~ +12 V.

3. Real-Time Clock Backup Battery

Built-in non-replaceable lithium rechargeable battery (vanadium pentoxide type);

Charging voltage range: 3.0 VDC ~ 3.3 VDC;

Standby current consumption: 12 μA;

Data & clock retention time after full charging: up to 21 days.

4. Supplementary Electrical Restrictions

The module has no external AC power interface and is fully powered by the PLC backplane.

It can withstand transient voltage surges up to 40% of the rated backplane voltage.

1. Hardware & Installation Characteristics

Adopting single-slot structure, the MVI46-MCM is fully compatible with Allen‑Bradley SLC 500 (1746) rack backplane, supporting plug-and-play installation with no rack modification and minimal space occupation.

The module is entirely powered by the 5.1 VDC PLC backplane without external power wiring, conforming to Class 2 power standards and equipped with built-in surge protection.

It provides three independent serial ports: one RJ45 RS232 port for configuration and debugging, plus two universal programmable ports supporting RS232/RS422/RS485 communication.

Multiple LED indicators intuitively display power status, backplane communication status, serial port activity and system faults in real time.

A built-in non-replaceable lithium backup battery retains system clock and configuration data for up to 21 days after power loss.

Designed with industrial-grade performance, it operates stably within 0℃ ~ 70℃, features IP20 protection and excellent EMC anti-interference ability, adapting to complex and harsh industrial scenarios.

2. Protocol & Communication Capabilities

This professional Modbus gateway supports standard Modbus RTU and Modbus ASCII serial protocols. The two application serial ports can be independently configured as Modbus Master or Slave, enabling flexible master-slave hybrid networking.

In Master mode, each port supports up to 100 sets of independent Modbus command lists, realizing customized read/write access to remote transmitters, inverters, sensors and third-party PLCs.

In Slave mode, it responds to external Modbus host requests and maps SLC PLC internal register data to standard Modbus address space.

All serial communication parameters (baud rate, data bits, stop bits, parity check and character delay) are freely adjustable. Equipped with anti-interference guard band function, it ensures stable communication with unstable field devices.

It supports all mainstream Modbus function codes, achieving wide compatibility with most Modbus-based industrial field equipment.

3. Data Transmission & Storage Performance

Equipped with a maximum 5000-word shared register buffer, the module enables high-speed asynchronous data exchange between SLC CPU and Modbus network, unaffected by PLC scan cycle to guarantee efficient data transmission.

Data interaction is based on SLC M0/M1 file registers, perfectly matching RSLogix 500 ladder logic programming for convenient data acquisition and control logic linkage.

It supports floating-point data conversion, meeting the transmission requirements of analog parameters such as temperature, pressure and flow.

4. Configuration, Debugging & Diagnosis

The local RJ45 RS232 port supports fast parameter configuration, firmware upgrade and offline fault diagnosis.

It integrates a comprehensive diagnosis system, which can count serial port communication errors, monitor address access exceptions and backplane connection status, realizing rapid fault location.

Matched with official dedicated configuration tools and standard EDS files for automatic PLC identification; it supports online parameter modification without system power-off or restart.

Built-in event logging function automatically records system abnormalities and operation logs for post-failure analysis and equipment maintenance.

5. Practical Application Advantages

The module realizes seamless data interconnection between Rockwell SLC 500 PLC and multi-brand Modbus devices, widely applicable to petrochemical, water treatment, electric power, metallurgy and SCADA monitoring systems.

RS485 differential signal transmission supports long-distance on-site wiring, with -7V ~ +12V common-mode voltage tolerance and outstanding anti-interference performance.

All serial ports are equipped with short-circuit protection, effectively preventing module damage caused by on-site wiring faults and improving overall system operation reliability.

Frequently Asked Questions (FAQ)

1.How fast will you reply to my inquiry?

We process all inquiries efficiently and will respond promptly once we receive your message.

2.Do you carry large inventory of industrial control parts?

We maintain massive ready stock of mainstream automation spare parts to shorten lead times.

3.Can you source discontinued or obsolete PLC & DCS modules?

Absolutely.
We specialize in sourcing hard-to-find, obsolete and out-of-production industrial control components.

4.Do you inspect goods before shipment?

Every product undergoes thorough inspection before packing and dispatch.

5.Can you ship orders worldwide?

We provide global shipping with flexible logistics for urgent and regular orders.

6.What payment methods are available?

We accept multiple secure payment options. Please contact our sales team for detailed terms