ABB 07KR91 GJR5250000R0101 Procontic CS31 Central Unit CPU
Product Overview
The ABB 07KR91 (Order Code GJR5250000R0101), often identified by the revision 07KR91E, is a high-performance Central Processing Unit (CPU) within the Procontic CS31 and Advant OCS 90 Series architecture. This module serves as the primary intelligence for distributed automation systems, responsible for executing time-critical control algorithms, managing system-wide synchronization, and coordinating data traffic across the CS31 system bus.
Designed for long-term industrial reliability, the 07KR91 features a dedicated 7K FLASH EPROM for secure program storage, ensuring logic retention even during total power loss. It is optimized for complex process control where high-speed data handling and deterministic execution are mandatory. Its modular design allows it to interface seamlessly with various fieldbus protocols, making it a cornerstone for legacy system support and modern industrial expansions.
Technical Specifications
Technical characteristics and hardware parameters for the 07KR91 GJR5250000R0101:
| Parameter | Specification Details |
| Model Number | 07KR91 / 07KR91E |
| Order Code | GJR5250000R0101 |
| Series | Procontic CS31 (90 Series) |
| Product Type | Central Processing Unit (CPU) |
| System Compatibility | Advant OCS, Procontic CS31 Controllers |
| Program Memory | 7 KB FLASH EPROM |
| Data Memory | Integrated RAM for dynamic variables |
| Communication Interface | RS-232C (Standard); Supports Modbus & CS31 Bus |
| Input Power | 24V DC Nominal |
| Dimensions (W x H x D) | 240 mm x 140 mm x 85 mm |
| Weight | 0.9 kg (Net) / 1.6 kg (Shipping) |
| Operating Temperature | 0 °C to +55 °C |
| Mounting | Standard Procontic Rack/Backplane |
| Country of Origin | Sweden |
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