ProSoft MVI56-MDA4 Multi-ｄｒｏｐ Analog Interface Module

The ProSoft MVI56-MDA4 is a multi-ｄｒｏｐ analog interface module designed for Rockwell ControlLogix PLC platform. It connects multiple analog field instruments through multi-ｄｒｏｐ wiring, collects analog measurement data and transmits data to the ControlLogix controller via backplane bus.

This module supports multi-point analog signal acquisition with built-in signal isolation and fault detection. It is widely stocked as automation spare parts for oil & gas, water treatment and chemical process control projects.

Main Specifications

• Brand: ProSoft Technology; Model: MVI56-MDA4; Type: Multi-ｄｒｏｐ Analog Interface Module
• Applicable System: Rockwell ControlLogix PLC control rack
• Core Tasks: Multi-ｄｒｏｐ analog signal acquisition, signal isolation, data conversion, channel fault diagnosis
• Interface: Field multi-ｄｒｏｐ analog terminals, ControlLogix rack backplane connector
• Installation: Single slot plug-in mounting inside ControlLogix chassis
• Compatible Devices: 4-20mA field transmitters for temperature, pressure, flow and liquid level
• Operating Environment: 0℃ ~ +60℃, 5%‑95% RH non‑condensing, industrial anti‑vibration grade
• Certifications: CE, compliant with industrial automation EMC and safety standards

Core Functions

• Support multi-ｄｒｏｐ bus wiring to collect analog signals from multiple field transmitters and realize centralized signal acquisition.
• Complete analog-to-digital conversion and store valid process data in internal registers for PLC program reading.
• Detect channel open circuit, short circuit and abnormal signal, feed fault information back to the control system for alarm processing.
• Adopt isolated circuit design to suppress surge interference and improve stability in harsh industrial field environments.
• Equipped with LED status indicators for quick checking of module operation, backplane communication and field channel status.
• Single-slot modular structure supports flexible configuration, convenient installation and rapid replacement during equipment maintenance.

Application Scenarios

• Spare-part replacement for ControlLogix automation racks in petrochemical, oil & gas, water treatment and power plants.
• Analog signal collection hardware for multi-point temperature, pressure and flow monitoring of production process pipelines.
• Maintenance backup inventory for renovation and after-sales maintenance projects of distributed analog measurement systems.
• Matching interface module cooperating with ControlLogix CPU, power supply, communication modules and digital I/O boards.
• Retrofit replacement for aged modules with acquisition deviation, channel damage and backplane data transmission failure faults.

• Global aftermarket spare supply for automation maintenance teams maintaining Rockwell and ProSoft integrated control equipment worldwide.