OVERVIEW

Official designation: Omron C200H-B7A12 (C200H, B7A Master Link Interface Module)

Role/Application: This Master Link unit facilitates high-speed or long-distance one-way distributed multiplex transmission for 32 digital input points in C200H PLC systems.

KEY SPECS SUMMARY

Power: 100 mA at 5 V DC internal

Interfaces / Ports: MIL-style 40-pin connector

Indicators: Refer to the latest manufacturer manual.

Operating Temp: Refer to the latest manufacturer manual.

Platform / Compatibility: C200H PLC systems, Group-2 I/O

Limit: 500 meter max. (Standard speed)

Lifecycle: Discontinued, but widely available

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the two selectable transmission speed and maximum distance ratings for the C200H-B7A12 module?

A: Standard speed is 19.2 ms with 500 meters max; High-speed is 3 ms with 100 meters max.

Wiring & Installation:

Q: What is the typical internal current consumption required by the C200H-B7A12 from the C200H rack?

A: The unit typically consumes 100 mA of internal current at 5 VDC from the backplane.

Troubleshooting & Compatibility:

Q: What is the minimum input time for the C200H-B7A12 when operating in the high-speed transmission mode?

A: The module requires a minimum input signal time of 2.4 ms for reliable high-speed operation.

Replacement & Upgrades:

Q: Are there direct recommended replacements for the C200H-B7A12 B7A Master Link unit in modern Omron systems?

A: As the C200H-B7A series is discontinued, a replacement requires control system redesign using CS or CJ series.