ProSoft Technology 4303-MNET-MBP Modbus Network Bridge – MNET Series
When a Modbus TCP network cannot natively communicate with a Modbus Plus or legacy fieldbus segment, production lines stall, diagnostics fail, and engineers face costly custom wiring workarounds. The ProSoft Technology 4303-MNET-MBP eliminates this integration gap by acting as a transparent, high-performance bridge between Modbus TCP/IP and Modbus Plus networks — keeping your automation infrastructure running without protocol barriers.
Within ProSoft’s MNET (Modbus Network) Series, the 4303-MNET-MBP occupies a critical position as a dedicated Modbus bridge gateway. Designed for rack-mount deployment in Allen-Bradley and compatible PLC chassis, it is trusted by system integrators and OEMs worldwide to connect heterogeneous Modbus environments in manufacturing, oil & gas, water treatment, and power generation facilities.
Technical Specifications
- Part Number: 4303-MNET-MBP
- Manufacturer: ProSoft Technology
- Series: MNET (Modbus Network Series)
- Function: Modbus TCP/IP ↔ Modbus Plus Network Bridge
- Protocol Support: Modbus TCP (Client/Server), Modbus Plus
- Communication Ports: Ethernet (RJ-45), Modbus Plus (DB-9)
- Backplane Interface: Allen-Bradley SLC 500 / MicroLogix compatible chassis
- Power Supply: Supplied via backplane (5 VDC)
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C
- Weight: 300 g
- Certifications: CE, UL (refer to ProSoft datasheet for current listings)
- Form Factor: Single-slot rack-mount module
Note: Always verify specifications against the official ProSoft Technology datasheet for your specific firmware revision.
Key Features & Benefits
- Transparent Protocol Bridging: Seamlessly passes Modbus data between TCP/IP and Modbus Plus segments without custom programming.
- Bidirectional Communication: Supports both client and server roles on the Modbus TCP side for maximum flexibility.
- Rack-Mount Integration: Installs directly into the PLC chassis — no external DIN-rail enclosure or separate power supply required.
- Deterministic Data Transfer: Ensures reliable, low-latency data exchange critical for real-time process control.
- Easy Configuration: Configured via ProSoft Configuration Builder (PCB) software — no ladder logic required for basic bridging tasks.
- Diagnostic LEDs: On-board status indicators for rapid fault isolation and commissioning.
- Wide Industrial Compatibility: Works alongside Allen-Bradley PLCs and third-party Modbus TCP devices simultaneously.
Industry & Equipment Applications
- Oil & Gas: Connecting SCADA Modbus TCP hosts to legacy Modbus Plus RTU field devices on wellheads and pipelines.
- Water & Wastewater Treatment: Bridging modern HMI/SCADA systems to existing Modbus Plus pump and valve controllers.
- Power Generation & Utilities: Integrating energy management systems with legacy Modbus Plus metering equipment.
- Manufacturing & Assembly: Enabling data exchange between Ethernet-based MES platforms and Modbus Plus machine controllers.
- Building Automation: Linking BMS Modbus TCP supervisory systems to Modbus Plus zone controllers.
System Integration & Compatible Parts
The 4303-MNET-MBP is designed to work within Allen-Bradley SLC 500 and compatible chassis environments. Commonly paired components include:
- Allen-Bradley SLC 500 series PLCs (1747-L series processors)
- ProSoft MVI46 and MVI56 series communication modules
- Modbus TCP-capable HMI panels (Rockwell, Siemens, Schneider)
- ProSoft Configuration Builder (PCB) software (free download)
- Standard RJ-45 Ethernet patch cables and DB-9 Modbus Plus cables
Contact Konmask.com for compatibility verification with your specific PLC chassis and firmware version.
Our Quality Assurance Process
- Authentic Sourcing: All ProSoft modules are sourced from authorized distributors or verified surplus channels — no counterfeit risk.
- Pre-Shipment Inspection: Each unit undergoes visual inspection, label verification, and firmware version check before dispatch.
- Secure Packaging: Anti-static packaging with foam inserts protects modules during international transit.
- Traceability: Serial numbers and lot codes are recorded for full supply chain traceability.
- Warranty Support: We assist customers with ProSoft Technology warranty claims and RMA processes.
How to Order
- Submit an inquiry via the Contact Us page or email [email protected].
- Provide your required quantity, delivery timeline, and destination country.
- Receive a formal quotation with lead time and shipping options within 24 hours.
- Confirm the order and complete payment via T/T bank transfer or other agreed method.
- Track your shipment with the provided AWB/tracking number.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation Components — PLC modules, DCS parts, and communication gateways are our core business.
- ✅ Global B2B Export Experience — We ship to 50+ countries with full export documentation support.
- ✅ Fast Inquiry Response — Dedicated engineers respond to technical and commercial inquiries within 24 hours.
- ✅ Competitive Pricing — Direct sourcing relationships enable us to offer market-competitive prices on hard-to-find modules.
- ✅ After-Sales Support — Technical guidance on installation, configuration, and troubleshooting available post-purchase.
Frequently Asked Questions
- Q: What is the difference between the 4303-MNET-MBP and a standard Modbus TCP gateway?
- A: The 4303-MNET-MBP is specifically designed to bridge Modbus TCP/IP with Modbus Plus — a proprietary Schneider/Modicon peer-to-peer network. Standard Modbus TCP gateways typically only handle Modbus RTU/ASCII conversion, not Modbus Plus.
- Q: Does the 4303-MNET-MBP require a separate power supply?
- A: No. The module draws power directly from the PLC chassis backplane (5 VDC), simplifying installation and reducing panel space requirements.
- Q: What software is used to configure the 4303-MNET-MBP?
- A: ProSoft Configuration Builder (PCB) is the primary configuration tool. It is available as a free download from the ProSoft Technology website.
- Q: Can Konmask.com provide the original ProSoft datasheet and user manual?
- A: Yes. Contact us at [email protected] and we will provide the relevant technical documentation for the 4303-MNET-MBP.
- Q: What is the typical lead time for the 4303-MNET-MBP?
- A: Lead time varies by stock availability. Please submit an inquiry for a real-time stock check and delivery estimate.
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