ABB GJR5251000R0303 07 KP 90 AC31 Communication Coupler

Description

The ABB 07 KP 90 (Order Code: GJR 525 1000 R0303) is a Communication Coupler designed for integration within the ABB Advant Controller 31 (AC31) automation platform. Functioning as a dedicated protocol interface, this module enables structured data exchange across industrial networks using the RCOM communication protocol.

Operating on a standard 24 V d.c. auxiliary supply, the 07 KP 90 facilitates flexible network topologies by supporting both master and slave interface configurations. It allows central AC31 controllers to link with remote stations, field devices, and secondary control systems over dedicated serial communication lines.

By offloading protocol management from the main processing unit, the ABB 07 KP 90 maintains deterministic bus communication and reliable data throughput across distributed control architectures. Its compact unit footprint integrates directly into standard AC31 rack configurations.

Features

• Built-in RCOM protocol engine for deterministic network communication.
• Configurable master and slave operational modes on the RCOM interface.
• Direct integration into ABB Advant Controller 31 (AC31) 90 Series architectures.
• Operating voltage requirements met via standard 24 V d.c. power connection.
• Lightweight 0.450 kg construction designed for industrial cabinet mounting.

Applications

• Master/slave network coupling across ABB AC31 programmable logic controller networks.
• Remote station communication and telemetry in distributed water, energy, or infrastructure installations.
• Protocol interfacing between central control nodes and sub-distribution panels.
• Retrofit, maintenance, and expansion of legacy Advant Controller 31 automation systems.

Technical Specifications

General

Electrical & Communication

Physical Attributes

Installation Guidelines

1. Pre-Installation Checks: Verify the order code (GJR 525 1000 R0303) and ensure the system power supply is turned off before insertion or removal.
2. Mounting: Secure the module into the designated slot of the AC31 base rack or mounting assembly, ensuring panel locking mechanisms engage fully.
3. Power Connection: Connect the regulated 24 V d.c. power lines to the appropriate supply terminals, paying close attention to polarity.
4. Communication Cable Routing: Route the RCOM communication lines away from high-voltage power cables to prevent electromagnetic interference. Ensure proper shield grounding at the designated system tie points.
5. Initial Power-Up: Apply power and monitor the front-panel status indicators to confirm module initialization and bus activity.

Configuration / Replacement

• Node & Mode Setup: Ensure the module address and master/slave mode settings are assigned in accordance with the project's RCOM network map.
• System Backup: Prior to replacing an active unit, upload or verify the host controller's configuration and network address parameters.
• Replacement Procedure: Power down the system segment, disconnect the terminal connections, release the unit from the mounting rack, install the replacement module, and restore communication links before applying 24 V d.c. power.