Order Code: 07KR51 (1SBP260010R1001 / 1SBP260511R1001)
Series: Advant Controller 31 (AC31) / CS31
Supply Voltage: 24 VDC (18–30 VDC) or 120/230 VAC
Digital Inputs: 8 channels, 24 VDC, optically isolated
Relay Outputs: 6 channels, 250 VAC / 30 VDC, 5A (resistive)
Counters: 2 × hardware counters
Program Memory: 34 kB (Flash EPROM)
Data Memory: 4.4 kB (non-volatile RAM)
Communication: CS31 bus (master/slave), Modbus RTU (optional)
Operating Temp: 0 °C to +55 °C
Storage Temp: -25 °C to +75 °C
Protection: IP20
Mounting: DIN rail (TH35) or panel mount
Dimensions: ~85 × 93 × 84 mm
Weight: ~0.9 kg
Certifications: CE, UL, cUL
Description
ABB 07KR51 is a compact PLC CPU belonging to the Advant Controller 31 (AC31) series. It serves as a central controller for the CS31 distributed fieldbus system, featuring built-in I/O and versatile communication for small-to-medium industrial automation tasks.
The 07KR51 is a robust, space-efficient controller designed for standalone or networked operation. It integrates control logic, on-board I/O, and fieldbus communication in a single module, supporting both local and distributed I/O expansion via the CS31 bus.
Built-in I/O: 8 × 24 VDC digital inputs, 6 × relay outputs (NO, 230 VAC/5A).
Memory: 34 kB user program (Flash EPROM), 4.4 kB non-volatile data RAM.
Communication: Integrated CS31 (RS-485) bus interface; supports Modbus RTU (RS-232).
Programming: Compatible with ABB Control Builder, supporting IEC 61131-3 languages.
Reliability: LED diagnostics, battery-backed RTC, wide temperature range, industrial-grade protection.
Applications: Machine control, process automation, building control, material handling.
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