07 KR 91 | ABB GJR5250000R0101 Processor Module Central Unit

Overview

The ABB 07 KR 91 (GJR5250000R0101) Processor Module is a central control unit designed for ABB programmable logic controllers and machine automation systems. Acting as the system’s processing core, it executes user-defined logic, handles input/output operations, and coordinates communication between devices. Its robust electrical design and high I/O capacity make it suitable for both discrete and process control environments.

Technical Specifications

• Model Number: 07 KR 91

• Part Number: GJR5250000R0101

• Manufacturer: ABB

• Product Type: Processor Module / Central Processing Unit

• Power Supply: 115 / 230 V AC

• Binary Inputs: 64 channels

• Binary Outputs: 64 channels

• Word Inputs: 16 channels

• Word Outputs: 16 channels

• Reset Function: Overwrite type

• Maximum Nesting Depth: 15 levels

• Mounting Type: Module rack installation

• Category: PLCs and Machine Control

• Subcategory: PLC Processor Module

Mechanical Data

• Dimensions: 229 mm × 25 mm × 127 mm (9.0 × 1.0 × 5.0 in)

• Net Weight: 0.9 kg (1 lb 16 oz)

Key Features

• Central CPU unit for managing logic execution and I/O control

• Supports 64 input and 64 output digital channels for system scalability

• Dual voltage operation (115/230 V AC) for flexible installation

• Real-time data processing for fast and reliable control performance

• Compact design suitable for panel and rack-mounted systems

Application Scenarios

The 07KR91 module is commonly used in:

• Factory automation and production line control

• Process control in chemical, power, and material handling systems

• Machine-level control where high I/O density and fast logic processing are required

FAQ

Q: What distinguishes the 07KR91 from the 07KR51 module?
A: The 07KR91 offers a higher I/O count and supports both binary and word-based input/output operations, while the 07KR51 is optimized for smaller PLC configurations.

Q: Is the 07KR91 compatible with 24 V DC I/O modules?
A: Yes, it can interface with 24 V DC I/O expansion modules through compatible ABB rack systems.

Q: What type of reset mechanism does it use?
A: It features an overwrite reset function for restoring default operational states during maintenance or power cycles.