• Allen-Bradley 1794-AV-MVI
  • Allen-Bradley 1794-AV-MVI
  • Allen-Bradley 1794-AV-MVI
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Allen-Bradley 1794-AV-MVI FLEX I/O Multi-Vendor Serial Interface Module

Allen-Bradley 1794-AV-MVI FLEX I/O Multi-Vendor Serial Interface Module

Description

The Allen-Bradley 1794-AV-MVI is a specialized serial communication interface designed for the FLEX I/O 1794 distributed architecture. This module serves as a gateway bridge, enabling seamless data integration between third-party...

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SKU: 1794-AV-MVI
Vendor: Allen-Bradley
Category: Communication Module
Related Series:

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Description

The Allen-Bradley 1794-AV-MVI is a specialized serial communication interface designed for the FLEX I/O 1794 distributed architecture. This module serves as a gateway bridge, enabling seamless data integration between third-party serial devices—such as barcode scanners, weigh scales, flow meters, and VFDs—and an Allen-Bradley control system. By acting as a communication node, it streamlines the connection of proprietary hardware into a centralized backplane, reducing the need for complex external data conversion hardware.

Features

  • Multi-Vendor Integration: Facilitates communication with diverse serial-based field devices, supporting master/slave data exchange.
  • FLEXbus Management: Coordinates I/O data refreshing for up to 8 adjacent FLEX I/O modules within the same assembly.
  • Compact Design: Engineered for high-density mounting within standard industrial control panels.
  • Direct Connectivity: Features an onboard serial connector for point-to-point diagnostic and data character stream acquisition.

Applications

This module is ideal for material handling, manufacturing, and process automation environments where legacy or specialized serial instrumentation must be integrated into a modern Allen-Bradley FLEX I/O backplane topology.

Technical Specifications

Model 1794-AV-MVI
Product Line FLEX I/O 1794
Module Type Serial Communication Interface
Capacity Up to 8 FLEX I/O modules
Supply Voltage 24 VDC
Operating Temperature 0 to 40 degC
Relative Humidity 0 to 80 percent (non-condensing)
Mounting 35 mm DIN Rail or Panel Mount
Weight 0.34 kg

Installation Guidelines

  • ESD Precautions: Always use a grounded wrist strap when handling the module to prevent electrostatic discharge damage to internal components.
  • Power Requirements: Ensure the 24 VDC power supply is stable and properly fused before connecting the module to the backplane.
  • Mounting: The module is designed for 35 mm DIN rail mounting. Ensure the module is securely clicked into place on the rail to maintain backplane continuity.
  • Environment: Install within a climate-controlled enclosure. The module is an open-style device and is not rated for direct exposure to harsh environmental elements.
  • Wiring: Route serial communication cables away from high-voltage power lines and sources of electromagnetic interference (EMI) to ensure signal integrity.

FAQ

Q: Does the 1794-AV-MVI require external power?
A: Yes, the module requires a 24 VDC nominal supply for operation within the FLEX I/O assembly.

Q: How many modules can the 1794-AV-MVI support?
A: This interface node can manage up to 8 adjacent functional FLEX I/O modules on the local backplane.

Q: Is this module suitable for outdoor installation?
A: No, the 1794-AV-MVI is an open-style module intended for installation inside a protective, climate-controlled industrial control panel.