- Model: MVI56-MNET
- Brand: ProSoft Technology
- Series: ControlLogix Platform (MVI56)
- Core Function: Interfaces Rockwell Automation ControlLogix processors with Modbus TCP/IP networks
- Type: Communication Module (Single-slot)
- Key Specs: 10/100 Mbps Ethernet, Client/Server support, 5,000-word database
- Condition: New Original (New Surplus), not refurbished
Product Introduction
The ProSoft MVI56-MNET allows a Rockwell Automation ControlLogix processor to communicate natively with Modbus TCP/IP devices. By functioning as both a Client and a Server, this module enables a single ControlLogix rack to aggregate data from high-precision power meters, flow controllers, and third-party PLCs over a standard Ethernet backbone.
Experienced controls engineers rely on the MVI56-MNET to bridge the gap between EtherNet/IP-based Logix systems and widespread Modbus TCP/IP field equipment. Its 5,000-register internal database ensures that large data arrays can be transferred to the processor tags without saturating the ControlLogix backplane bandwidth or complicating the ladder logic.
Key Selling Points & Differentiators
- Simultaneous Multi-Role: Acts as a Modbus TCP/IP Client (Master) and Server (Slave) at the same time, simplifying complex network architectures.
- Add-On Instruction (AOI) Support: Streamlines integration within Studio 5000/RSLogix 5000 environments, reducing manual tag mapping time.
- Validated Performance: Each unit is tested on a 1756-A10 backplane with a continuous 24-hour Modbus polling cycle to verify thermal stability and port reliability.
- Not Recommended For: Applications requiring “Class 1” implicit messaging or sub-millisecond I/O updates typical of high-speed motion axes.
- Industrial Durability: Conforms to EN61000-6-4 and EN61000-6-2 standards for heavy industrial electromagnetic compatibility.
Quality Transparency Strategy (QC SOP)
- Incoming Inspection: We verify the physical integrity of the 1756 backplane connector and check the serial number against ProSoft records to ensure the hardware revision is current.
- Live Functional Test: Modules are powered up in a ControlLogix test rack. We perform an IP assignment via the ProSoft Configuration Builder (PCB) and verify the 10/100 Link/Activity LEDs.
- Protocol Validation: We establish a Modbus TCP session with a simulator to confirm the module can successfully read/write all 5,000 internal registers without timeouts.
- Electrical Parameter Tests: We measure the 5.1 V DC current draw against the 800 mA specification to ensure no internal component degradation.
- Firmware Verification: The specific firmware version is recorded. If your system requires a specific “Legacy” firmware to match an existing project file, we can verify and flash this prior to shipping.
- Final QC + Packaging: The module is sealed in an ESD-compliant moisture barrier bag and packed in a customized corrugated carton for secure global transit.
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