Process Instrumentation Solution – ProSoft Technology MVI56-HART | MVI56 Series
The ProSoft MVI56-HART is a HART (Highway Addressable Remote Transducer) multi-drop master communication module engineered for Allen-Bradley ControlLogix backplane integration. It bridges HART-enabled field instruments — transmitters, positioners, flow meters, and analyzers — directly into your PLC control architecture, eliminating the need for separate HART modems or handheld communicators during routine data acquisition.
Where This Product Is Used
The MVI56-HART is specified across demanding process industries where HART protocol is the standard for smart field device communication:
- Oil & Gas Upstream/Midstream: Wellhead pressure and temperature transmitter integration, pipeline flow measurement, and separator level control loops.
- Chemical & Petrochemical Plants: Continuous monitoring of reactor vessel instruments, valve positioner diagnostics, and safety instrumented system (SIS) data validation.
- Water & Wastewater Treatment: Multi-point level, flow, and pH sensor networks feeding SCADA via ControlLogix gateway.
- Power Generation: Boiler drum level, turbine inlet pressure, and emissions monitoring instrument integration.
- Pharmaceutical Manufacturing: FDA 21 CFR Part 11-compliant process variable logging from HART transmitters in clean-room environments.
- Pulp & Paper / Mining: Distributed instrument networks across large plant footprints using HART multi-drop topology to reduce wiring costs.
Technical Specifications
- Part Number: MVI56-HART
- Protocol: HART (Highway Addressable Remote Transducer) — Master Mode
- Topology: Multi-drop (up to 15 HART slave devices per channel)
- Backplane: Allen-Bradley ControlLogix (1756 series)
- Communication Channels: 2 independent HART master ports
- Baud Rate: 1200 bps (HART standard)
- Power Consumption: 800 mA @ 5 VDC (from ControlLogix backplane)
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C
- Humidity: 5% to 95% non-condensing
- Weight: 230 g
- Certifications: CE, UL Listed
- Form Factor: Single-slot ControlLogix module
- Configuration: ProSoft Configuration Builder (PCB) software
Why Engineers Specify This Model
- Native ControlLogix Integration: Communicates directly over the 1756 backplane — no gateway PC or OPC server required for basic HART data retrieval.
- Dual Independent HART Masters: Two isolated ports allow segmentation of instrument loops by process area or safety zone.
- Multi-Drop Efficiency: Supports up to 15 HART devices per channel, dramatically reducing field wiring infrastructure versus point-to-point 4–20 mA loops.
- Secondary Variable Access: Reads PV, SV, TV, and QV from multivariable HART transmitters — not just the primary analog signal.
- Diagnostic Transparency: Surfaces device status, loop current, and manufacturer-specific diagnostic data directly into ControlLogix tags for HMI display or historian logging.
- ProSoft PCB Software: Free configuration utility with pre-built ControlLogix Add-On Instructions (AOI) accelerates commissioning.
Complete System Bill of Materials
A typical MVI56-HART deployment requires the following components:
- 1756-A7 or larger ControlLogix chassis
- 1756-L7x or 1756-L8x ControlLogix CPU
- 1756-PA72 or 1756-PB72 power supply
- MVI56-HART communication module (this item)
- HART-compatible field transmitters (e.g., Rosemount 3051, Endress+Hauser Promag)
- ProSoft Configuration Builder (PCB) — free download
- MVI56-HART Add-On Instruction (AOI) — available from ProSoft
- Standard 2-wire or 4-wire HART field wiring (250 Ω minimum loop resistance)
Compliance & Industry Standards
- HART Protocol: HART Communication Foundation (FieldComm Group) compliant — HART 5, 6, and 7
- CE Marking: EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU
- UL Listed: Industrial Control Equipment
- RoHS: Compliant with EU Directive 2011/65/EU
- IEC 61158: Fieldbus standard alignment
Quality Assurance & Sourcing
All ProSoft MVI56-HART modules supplied by Konmask.com are sourced through verified industrial automation distribution channels. Each unit undergoes incoming inspection including visual examination, label verification, and functional power-on checks prior to dispatch. We supply genuine ProSoft Technology OEM hardware — no grey-market, refurbished, or counterfeit substitutes.
- Original manufacturer packaging and documentation
- Traceable lot and serial number records
- 30-day return window for DOA units
- Global shipping with export documentation support
How to Source This Part
To place an order or request a formal quotation for the ProSoft MVI56-HART:
- Online: Add to cart directly on this page — stock availability shown in real time.
- Email RFQ: support@konmask.com — include quantity, required delivery date, and project name.
- Phone/WhatsApp: +0086 19859288691 — available for urgent procurement and technical pre-sales questions.
- Lead Time: In-stock units ship within 1–3 business days. Ex-stock and special-order lead times quoted on request.
Application-Specific FAQ
Q: Can the MVI56-HART operate as a HART slave (secondary master)?
A: No. The MVI56-HART is a primary master only. It initiates all HART communication; it does not respond to commands from another HART master on the same loop.
Q: How many HART variables can be mapped into ControlLogix tags?
A: The module maps up to 4 dynamic variables (PV, SV, TV, QV) plus status and loop current for each connected device. Total tag count depends on the number of devices configured per channel.
Q: Is the MVI56-HART compatible with ControlLogix L8x (v32+ firmware)?
A: Yes. ProSoft has validated compatibility with current ControlLogix firmware. Always confirm the latest PCB software version matches your Studio 5000 project version.
Q: Can this module be used in a SIL-rated safety loop?
A: The MVI56-HART itself is not SIL-certified. For SIL applications, HART data from this module should be used for monitoring/diagnostics only — not as the primary safety-rated signal path.
Q: What is the maximum cable length for HART multi-drop wiring?
A: HART specification allows up to 3,000 m (9,843 ft) of total cable capacitance ≤ 200 nF. Actual distance depends on cable type and number of devices on the segment.
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