PROSOFT MVI56-DNPSNET DNP3 Network Communication Module

Description

PROSOFT MVI56-DNPSNET DNP3 Network Communication Module

Product Dimensions：

The ProSoft Technology MVI56-DNPSNET is an industrial communication module designed to seamlessly interface DNP3 (Distributed Network Protocol) over Ethernet with Allen-Bradley ControlLogix PLCs. It allows a ControlLogix processor to act as a DNP3 Server (Slave), enabling it to communicate with SCADA host systems and Intelligent Electronic Devices (IEDs) that use the DNP3 protocol.

Product Detailed Description

The MVI56-DNPSNET is a single-slot, backplane-compatible module that installs directly into an Allen-Bradley ControlLogix chassis. It acts as an input/output module between the DNP3 network and the ControlLogix processor. Data transfer from the processor is asynchronous from the actions on the DNP3 network, utilizing a large internal database within the module to manage and store I/O data tags efficiently.

Technical Parameters

Product Advantages

• Native Integration: It resides directly within the ControlLogix chassis, removing the need for external third-party protocol converters or hardwired gateways.
• Accurate Time-Stamping: DNP3 is highly valued for its sequence-of-events recording. The module supports precise time synchronization from the SCADA master or the PLC processor, ensuring data events are time-stamped accurately at the millisecond level.
• Large Event Buffer: With the ability to log thousands of historical data events locally, it ensures no critical alarm data is lost even if communication with the master SCADA station is temporarily interrupted.
• Simplified Engineering: ProSoft provides free Add-On Profiles (AOP) and Add-On Instructions (AOI) for Studio 5000, significantly reducing the time required for ladder logic programming and tag mapping.

Important Considerations & Precautions

• Chassis Power Budget: The module draws a substantial amount of current (800 mA at 5 V DC). Before installation, check the power supply capacity of your 1756 chassis to ensure it can handle the additional load alongside other active modules.
• IP Network Configuration: Ensure the module is configured with a static IP address outside of any DHCP pools to prevent SCADA connection drops. Ensure port 20000 (the standard port for DNP3 over TCP/UDP) is open on any intervening network firewalls.
• Memory Mapping: Properly configure the data types (Binary Inputs, Analog Inputs, Counters) within the ProSoft Configuration Builder (PCB) utility to align correctly with your ControlLogix controller tags; mismatched structures will result in communication errors.
• Firmware Tracking: Always keep the module firmware and your Studio 5000 version synchronized based on ProSoft’s compatibility matrices to prevent backplane communication drops.

Product Applications

The MVI56-DNPSNET is predominantly utilized in heavy infrastructure and utility sectors where the DNP3 protocol is the mandated standard:

• Electrical Substations: Connecting ControlLogix PLCs to regional SCADA grids for monitoring substations, transformers, and switchgear.
• Water & Wastewater Treatment: Linking localized pump controls, telemetry systems, and flow meters over wide-area networks back to a central control room.
• Oil & Gas Pipelines: Transmitting remote pipeline monitoring data, pressure levels, and flow computing information back to corporate master stations.
• Renewable Energy Generation: Managing data acquisition for solar arrays and wind farm sub-stations that rely heavily on automated event logging.

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