The 07KR51 (1SBP260014R1001) is a high-performance, compact PLC basic unit within the ABB Advant Controller 31 (AC31) series. This central unit serves as the core intelligence for small to medium-scale automation tasks, providing integrated digital signal processing and logic control. Operating on 230 VAC power, the 07KR51 is equipped with a built-in CS31 system bus interface, enabling it to act as a bus master to manage remote I/O expansion modules. Its robust relay outputs and high-speed hardware counters make it an ideal choice for machinery control, HVAC systems, and distributed process monitoring.
The 07KR51 (1SBP260014R1001) is engineered to meet rigorous industrial standards, combining power supply, I/O, and CPU functions in a single module.
Manufacturer: ABB
Model Designation: 07KR51 (Revision A3.6)
Order Number: 1SBP260014R1001
System Type: Advant Controller 31 / Advant OCS
Supply Voltage: 230 VAC (Tolerance: 195–264 VAC, 50/60 Hz)
Digital Inputs: 8 Channels (24 VDC, Sink/Source)
Digital Outputs: 6 Relay Outputs (Individually isolated, rated up to 2 A at 230 VAC)
System Bus: Integrated CS31 Bus (RS-485 based)
Memory: Integrated user program and data memory (Battery-buffered)
Counters: 2 Integrated high-speed hardware counters (up to 5 kHz)
Real-Time Clock (RTC): Built-in for time-stamping and scheduling
Expansion Capacity: Support for up to 31 remote CS31 devices (Total system up to 1000 I/O)
Programming: AC31GRAPH, 907AC1131
Weight: 0.9 kg (1 lbs 14.1 oz)
Dimensions: 10.2 cm x 10.2 cm x 12.7 cm (4.0" x 4.0" x 5.0")
Mounting: DIN Rail or screw mounting
Integrated Communication: The 07KR51 (1SBP260014R1001) features a dedicated CS31 fieldbus port, allowing for deterministic communication with remote analog and digital modules over long distances without decreasing CPU scan times.
Relay-Based Actuation: The six onboard relay outputs provide high-current switching capabilities, eliminating the need for interposing relays when driving solenoid valves or small motors directly.
Time-Critical Processing: With two integrated hardware counters and a real-time clock, the unit manages precise event counting and time-of-day control logic, essential for dosage and logging applications.
Industrial Hardening: Designed for high-interference environments, the module is certified for operation within a -40°C to +75°C storage range and maintains functionality in humid, non-condensing conditions.
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