ProSoft Technology MVI56-DNP DNP3 Master/Slave Network Interface – MVI56 Series
When a DNP3 communication link fails in a substation, water treatment plant, or pipeline SCADA network, the consequences are immediate and severe: operators lose real-time visibility, automated control loops go blind, and field devices become unreachable islands of data. Regulatory compliance windows close, emergency response slows, and the cost of unplanned downtime escalates by the minute. The ProSoft Technology MVI56-DNP module exists precisely to prevent this scenario — delivering rock-solid DNP3 protocol bridging directly inside the Allen-Bradley ControlLogix backplane, where reliability is non-negotiable.
Within the MVI56 Series — ProSoft’s flagship ControlLogix communication platform — the MVI56-DNP occupies a critical niche as the dedicated DNP3 (Distributed Network Protocol 3) gateway. DNP3 is the dominant protocol in electric utility, water/wastewater, and oil & gas SCADA environments globally, and the MVI56-DNP is one of the most widely deployed DNP3 interface solutions for Rockwell Automation ControlLogix systems worldwide. Its dual Master/Slave capability makes it uniquely versatile: a single module can simultaneously act as a DNP3 Master polling remote outstations and as a DNP3 Slave reporting upstream to a control center.
Technical Specifications
- Part Number: MVI56-DNP
- Protocol: DNP3 (Distributed Network Protocol 3) — IEEE 1815
- Operating Mode: Master and/or Slave (simultaneous dual-mode capable)
- Platform: Allen-Bradley ControlLogix (1756 backplane)
- Serial Ports: 2 × RS-232/RS-422/RS-485 configurable ports
- DNP3 Master Sessions: Up to 32 slave devices per port
- DNP3 Slave Sessions: Supports multiple master connections
- Data Points: Supports Binary Input/Output, Analog Input/Output, Counter objects
- Unsolicited Reporting: Supported (DNP3 Level 2 compliant)
- Backplane Current Draw: 800 mA @ 5 VDC (typical)
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C
- Weight: 1,450 g (module with packaging)
- Certifications: CE, UL Listed
- Configuration Tool: ProSoft Configuration Builder (PCB) — free download
Key Features & Benefits
- True Dual-Mode Operation: Operates as DNP3 Master and Slave simultaneously on independent ports — eliminates the need for two separate modules in complex topologies.
- Seamless ControlLogix Integration: Mounts directly in the 1756 backplane; data exchange with the Logix controller via standard I/O messaging — no special ladder logic drivers required.
- Unsolicited Response Support: Slave mode supports unsolicited reporting, reducing polling overhead and improving real-time data latency in SCADA systems.
- Flexible Serial Interface: RS-232, RS-422, and RS-485 on each port — supports point-to-point, multi-drop, and fiber-optic converter configurations.
- ProSoft Configuration Builder: Free, intuitive Windows-based configuration utility with built-in diagnostics and data monitoring.
- Extensive Diagnostics: On-board LED status indicators plus software-accessible diagnostic counters for rapid fault isolation.
- Long-Term Availability: ProSoft maintains long product lifecycle support, with spare parts and firmware updates available for legacy installations.
Industry & Equipment Applications
- Electric Utilities & Substations: RTU/IED communication to SCADA master stations; protection relay data acquisition.
- Water & Wastewater: Pump station telemetry, reservoir level monitoring, treatment plant SCADA integration.
- Oil & Gas Pipelines: Remote compressor station monitoring, leak detection system integration.
- Renewable Energy: Wind farm and solar plant data aggregation to utility SCADA.
- Transportation Infrastructure: Traffic management and tunnel ventilation control systems using DNP3 over serial.
System Integration & Compatible Parts
- Host Controller: Allen-Bradley ControlLogix 1756 series (any L-series processor)
- Chassis: 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17
- Power Supply: 1756-PA72, 1756-PB72
- Related ProSoft Modules: MVI56-MCM (Modbus), MVI56-PDPMV1 (PROFIBUS DP), MVI56-101S (IEC 60870-5-101)
- Cable: RS-232 null-modem or RS-485 shielded twisted-pair per port wiring requirements
- Software: RSLogix 5000 / Studio 5000 Logix Designer; ProSoft Configuration Builder (PCB)
Our Quality Assurance Process
At Konmask.com, every MVI56-DNP module is sourced through verified supply channels and undergoes a structured inspection process before shipment:
- Visual inspection for physical damage, label integrity, and firmware version verification
- Authenticity cross-check against ProSoft Technology official part numbering and date codes
- Functional power-on test where applicable
- Anti-static packaging with humidity indicator cards for safe international transit
- Full traceability documentation available upon request
How to Order
- Submit an inquiry via the Contact Us form or email [email protected]
- Provide your required quantity, delivery timeline, and destination country
- Receive a formal quotation within 1 business day
- Confirm order with purchase order or deposit per agreed terms
- Shipment arranged via DHL / FedEx / sea freight with full tracking
Why Choose Konmask.com?
- ✅ Specialized in industrial automation components — PLC, DCS, SCADA hardware
- ✅ Global B2B supply to 50+ countries with export documentation support
- ✅ Fast response: quotations within 24 hours, urgent orders prioritized
- ✅ Transparent sourcing — no counterfeit, no grey-market risk
- ✅ Technical pre-sales support from engineers familiar with ControlLogix architecture
- ✅ Flexible payment terms for qualified buyers
Frequently Asked Questions
- Q: Can the MVI56-DNP operate as Master and Slave at the same time?
- A: Yes. Each serial port can be independently configured as Master or Slave, allowing simultaneous dual-mode operation within a single module.
- Q: What DNP3 conformance level does the MVI56-DNP support?
- A: The module supports DNP3 Level 2 conformance, including unsolicited response, time synchronization, and integrity poll functions.
- Q: Is the MVI56-DNP compatible with all ControlLogix processors?
- A: Yes, it is compatible with all 1756 ControlLogix L-series processors and is configured via ProSoft Configuration Builder, independent of processor firmware version constraints.
- Q: How do I configure the module?
- A: Configuration is done using the free ProSoft Configuration Builder (PCB) software. The configuration file is downloaded to the module via the RS-232 CFG port or Ethernet (if using an Ethernet-enabled variant).
- Q: Do you provide technical support after purchase?
- A: Yes. Konmask.com provides post-sale technical assistance including configuration guidance and liaison with ProSoft Technology support resources.
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