Industrial Protocol Conversion Solution – ProSoft PLX31-EIP-MBS4 | PLX31 Series
Where This Product Is Used
The ProSoft PLX31-EIP-MBS4 is deployed wherever a modern EtherNet/IP control network must communicate with legacy Modbus RTU or Modbus ASCII serial devices. Typical deployment environments include:
- Water & Wastewater Treatment Plants – Bridging Allen-Bradley PLCs to legacy flow meters, level transmitters, and pump drives over RS-232/RS-485.
- Oil & Gas Upstream/Midstream – Integrating remote RTUs, pressure sensors, and SCADA field instruments into EtherNet/IP-based DCS architectures.
- Power Generation & Utilities – Connecting protective relays, power meters, and UPS systems that speak Modbus to Rockwell Automation ControlLogix or CompactLogix platforms.
- Food & Beverage Manufacturing – Linking older variable-frequency drives (VFDs) and temperature controllers to modern PLC-based production lines.
- Building Automation & HVAC – Aggregating Modbus-based chillers, AHUs, and energy meters into an EtherNet/IP supervisory network.
- Pharmaceutical & Chemical Processing – Providing protocol translation in validated environments where legacy serial instruments cannot be replaced.
Technical Specifications
- SKU / Part Number: PLX31-EIP-MBS4
- Protocol – Network Side: EtherNet/IP (Adapter / Scanner)
- Protocol – Serial Side: Modbus RTU & Modbus ASCII (Master / Slave)
- Serial Ports: 4 × isolated RS-232 / RS-485 / RS-422 (software-selectable)
- Ethernet Port: 1 × RJ-45, 10/100 Mbps
- Power Supply: 24 VDC (±10%), <3 W typical
- Mounting: DIN-rail (35 mm)
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +85 °C
- Humidity: 5–95% RH, non-condensing
- Weight: 240 g
- Certifications: CE, UL, cUL, RoHS
- Configuration Tool: ProSoft Configuration Builder (PCB) – free download
- Firmware Update: Via Ethernet (field-upgradeable)
Why Engineers Specify This Model
- 4 Independent Serial Ports – Consolidate up to 4 separate Modbus serial networks into a single EtherNet/IP node, reducing cabinet footprint and wiring cost.
- Dual-Role Flexibility – Operates as EtherNet/IP Adapter (server) or Scanner (client) and as Modbus Master or Slave on each port independently.
- Isolated Serial Interfaces – Optical isolation on all serial ports protects against ground loops and transient surges common in industrial environments.
- Deterministic Data Exchange – Implicit (Class 1) and Explicit (Class 3) EtherNet/IP messaging ensures real-time data delivery to Rockwell PLCs.
- Zero-Slot Installation – External DIN-rail module requires no PLC backplane slot, preserving rack space for I/O modules.
- Free Configuration Software – ProSoft Configuration Builder provides a graphical interface for mapping Modbus registers to EtherNet/IP tags without custom code.
Complete System Bill of Materials
For a complete EtherNet/IP ↔ Modbus Serial integration, engineers typically specify:
- ProSoft PLX31-EIP-MBS4 – Protocol Gateway (this unit)
- 24 VDC DIN-rail power supply (e.g., Phoenix Contact QUINT or equivalent)
- Managed industrial Ethernet switch (e.g., Cisco IE-2000 or Hirschmann RS series)
- RS-485 shielded twisted-pair cable (Belden 9841 or equivalent)
- DB9 or terminal-block serial connectors (per port wiring requirement)
- Rockwell Automation ControlLogix / CompactLogix PLC (EtherNet/IP scanner)
- ProSoft Configuration Builder software (free – download from ProSoft website)
Compliance & Industry Standards
- CE Marking – EMC Directive 2014/30/EU; Low Voltage Directive 2014/35/EU
- UL / cUL Listed – UL 508 (Industrial Control Equipment)
- RoHS Compliant – Directive 2011/65/EU (restriction of hazardous substances)
- EtherNet/IP Conformance – ODVA conformance tested
- Modbus Compliance – Modbus.org specification (RTU & ASCII modes)
Quality Assurance & Sourcing
Konmask.com sources the PLX31-EIP-MBS4 through verified industrial automation distribution channels. Every unit undergoes incoming inspection including:
- Visual and mechanical integrity check
- Label and firmware version verification against ProSoft release notes
- Functional power-on test prior to dispatch
Units are shipped in original ProSoft packaging with all factory accessories. Traceability documentation available on request.
How to Source This Part
- In-Stock Orders: Add to cart and check out – most orders ship within 1–2 business days.
- Bulk / Project Quotes: Contact [email protected] for volume pricing and lead-time confirmation.
- Urgent Requirements: Call or WhatsApp +0086 19859288691 for same-day response on critical project needs.
- Global Shipping: DHL / FedEx / UPS express available to 200+ countries. Export documentation (commercial invoice, packing list, COO) provided.
Application-Specific FAQ
Q: Can the PLX31-EIP-MBS4 connect to a Rockwell CompactLogix without an Add-On Profile (AOP)?
A: Yes. The module presents as a Generic EtherNet/IP device. ProSoft provides a free AOP and sample RSLogix 5000 / Studio 5000 project files to accelerate commissioning.
Q: Can all 4 serial ports run different Modbus baud rates simultaneously?
A: Yes. Each port is independently configurable for baud rate (1200–115200 bps), parity, stop bits, and Modbus mode (RTU or ASCII).
Q: Is the module suitable for hazardous area (Zone 2 / Class I Div 2) installations?
A: The standard PLX31-EIP-MBS4 is rated for general industrial use. For hazardous area installations, consult ProSoft for certified enclosure solutions or intrinsically safe barriers.
Q: What is the maximum number of Modbus devices per port?
A: Up to 247 Modbus slave addresses per port (RS-485 multi-drop), subject to cable length and network loading constraints.
Q: Does Konmask.com provide configuration support?
A: Yes. Our technical team can assist with basic PCB configuration guidance. Contact us at [email protected].
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Contact: [email protected] | +0086 19859288691
