Product Details
Product Overview
The MVI46-MCM is a ProSoft Technology module specifically engineered to integrate seamlessly with the Allen-Bradley SLC 500 platform. This single-slot solution functions as a gateway between the SLC backplane and Modbus serial networks. By acting as either a Modbus Master or Slave, the MVI46-MCM (PN: MVI46-MCM) enables modular processors to communicate with diverse field devices such as power monitors, variable frequency drives (VFDs), and remote terminal units (RTUs).
Technical Specifications
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Manufacturer Allen-Bradley / ProSoft Technology
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Product Series SLC 500 Modular Hardware
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Model Number MVI46-MCM
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Module Type Modbus Master/Slave Network Interface
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Slot Requirement Single Slot (Local or Extended Racks)
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Processor Compatibility SLC 5/02 or later (M0/M1 file capable)
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Backplane Current Load 800 mA @ 5.1 VDC
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Communication Ports Two (2) RJ45 RS-232/422/485 Application Ports
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Configuration Port One (1) RJ45 (RS-232 only)
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Maximum Registers 5000 16-bit registers
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Command Capacity Up to 100 commands per port
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Data Transfer Method Ladder Logic through M0/M1 files
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Operating Temperature 32°F to 140°F (0°C to 60°C)
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Vibration/Shock 30g Operational Shock
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Relative Humidity 5% to 95% (Non-condensing)
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Shipping Weight 3.00 lbs (1.36 kg)
Hardware Interface and Status
The module features a robust diagnostic display via front-panel LED indicators to assist in rapid troubleshooting:
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Module Status Overall health and initialization
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Backplane Transfer Data exchange status with the SLC CPU
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Application Status Configuration and port-specific health
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Serial Activity Real-time TX/RX monitoring and Error LEDs
Configuration and Integration
The MVI46-MCM requires specific setup within the RSLogix 500 environment. Because it utilizes M0 and M1 files for high-speed data transfer, the user must ensure the SLC processor supports these file types. The two application ports can be configured independently, allowing one port to operate as a Master while the other functions as a Slave on a completely separate Modbus network.
Frequently Asked Questions
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Can the MVI46-MCM be placed in a remote I/O rack?
No, the module is only supported in local or extended local racks. It cannot be used in remote racks over 1747-ASB or similar remote I/O adapters.
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What cable is required for the configuration port?
The module typically ships with an RJ45 to DB-9M cable specifically wired for RS-232 configuration tasks.
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How many Modbus devices can I connect to a single port?
In RS-485 mode, you can connect up to 32 nodes without a repeater. With repeaters, the Modbus protocol supports up to 247 slave addresses.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.
Essential Best Practices for PLC Wiring and Installation in Industrial Automation
Successful control system deployment begins with thoroughly reviewing manufacturer technical documentation. Controllers from major brands like Allen-Bradley, Siemens, and Schneider Electric feature unique terminal layouts. Engineers must verify voltage requirements before connecting power cables to prevent catastrophic equipment damage. Standard line connections require strict adherence to regional electrical codes and proper wire color coding. Furthermore, panel builders should always establish a robust low-impedance ground connection using at least 16-AWG copper conductor tied directly to the main plant grounding grid.