Description

ProSoft Technology PLX31-EIP-MBS4 4-Port EtherNet/IP to Modbus Serial Protocol Gateway

Technical Specifications

• Product Model: PLX31-EIP-MBS4
• Brand: ProSoft Technology
• Warranty: One Year
• Input Voltage: 24 VDC nominal, wide operating range 10 VDC – 36 VDC
• Operating Temperature: -25°C to +70°C
• Storage Temperature: -40°C to +80°C
• Response Time: Minimum 5ms RPI interval for EtherNet/IP Class 1 real-time I/O connections
• Protection Class: IP20, DIN rail cabinet mounting only
• Accuracy Class: Zero register offset error for protocol translation, industrial-grade data transmission integrity
• Output Frequency: 10/100 Mbps auto-negotiating Ethernet fixed transmission rate
• Rated Current Range: 300mA @24VDC nominal, maximum 610mA under minimum input voltage
• Communication Interface: 1×RJ45 EtherNet/IP Ethernet port; 4×electrically isolated RS232/RS422/RS485 serial terminals, micro SD card configuration slot
• Supported Protocols: EtherNet/IP (CIP Class 1 I/O, Class 3 messaging), Modbus RTU, Modbus ASCII, PCCC
• Overload Capacity: Reverse power polarity protection, EMC surge suppression, overvoltage clamping and short-circuit input protection
• Dimensions: 136.7mm (L) × 111.3mm (W) × 50.5mm (H)
• 

Product Overview

The PLX31-EIP-MBS4 is an independent DIN-rail mounted industrial protocol conversion gateway engineered by ProSoft Technology to deliver stable bidirectional data exchange between EtherNet/IP control platforms and multi-drop Modbus serial field equipment. This four-channel isolated communication module acts as a network translator, connecting Rockwell ControlLogix and CompactLogix EtherNet/IP PACs to legacy Modbus RTU/ASCII instruments such as variable frequency drives, power analyzers, temperature transmitters, remote I/O blocks and flow controllers across factory and process automation sites.

It resolves prominent integration bottlenecks in mixed-generation control architectures, including communication incompatibility between modern Ethernet-based host controllers and aging serial field devices, high hardware costs from deploying multiple single-port converters, signal crosstalk on shared Modbus buses, and lengthy reconfiguration workflows during spare module replacement. Equipped with four fully isolated serial channels, embedded EDS profile for direct RSLogix integration, SD card offline configuration backup and adjustable RPI bandwidth allocation, the gateway maintains consistent polling performance under electrical noise, wide temperature swings and heavy multi-device bus loading inside industrial control cabinets.