ABB 07KR91 GJR5250000R0101 PLC Central Unit

Product Overview

The ABB 07KR91 (GJR5250000R0101) is a versatile and reliable Central Unit of the Advant Controller 31 family. It is engineered for decentralized automation, acting as a standalone small-scale PLC or as a node within a larger network. With its integrated I/O and communication capabilities, the 07 KR 91 provides an "all-in-one" solution for machine control, building automation, and distributed processing environments where reliability is paramount.

Technical Data

• Model Designation: 07 KR 91

• Part Number: GJR5250000R0101

• Series: Advant Controller 31 (AC31)

• User Memory: 28 kB (For program and data)

• Digital I/O Configuration: 20 Digital Inputs / 12 Digital Relay Outputs

• Fast Counter: 1 channel (up to 10 kHz)

• Real-Time Clock: Integrated

• Battery Backup: Requires Lithium battery 07 LE 90

• Country of Origin: Typically Germany

Key Features

• Integrated Relay Outputs: The 12 digital outputs are relay-based, allowing for direct switching of higher current loads without the need for interposing relays in many applications.

• Flexible System Expansion: Equipped with the CS31 system bus, the unit can be expanded with additional distributed I/O modules, enabling it to manage more complex decentralized systems.

• Multi-Functional COM1 Port: This serial interface serves a dual purpose: it is used for programming the unit and can also be configured as an ASCII interface to communicate with peripheral devices like HMIs or printers.

• Advanced Diagnostics: Includes comprehensive self-diagnostic routines that monitor the health of the basic unit, the CS31 bus, and any connected expansion modules, reducing troubleshooting time.

• Detachable Connectivity: The screw-type terminal blocks can be unplugged, allowing for easy replacement of the central unit without re-wiring the entire system.