ABB 1SBP260014R1001 (commercial designation 07KR51‑A3.6) is a compact, all‑in‑one basic PLC from the Advant Controller 31 (AC31/Procontic CS31) series. It integrates CPU, power supply, digital inputs and relay outputs in a single unit. This model operates on 230 VAC and is designed for reliable switching control and small‑to‑medium automation applications with distributed I/O expansion capability.

1SBP is the unified part number prefix for ABB AC31 and CS31 series controllers. 260014 stands for the 230 VAC basic unit with relay outputs. R1001 indicates the standard hardware revision. 07KR51‑A3.6 is the commercial name, where A3.6 denotes the specific firmware / 硬件 version.

This controller belongs to the ABB Advant Controller 31 series and is compatible with Advant OCS. The power supply is 230 VAC with a tolerance of 195 to 264 VAC at 50/60 Hz, with a power consumption of approximately 7 watts. It has 8 channels of 24 VDC digital inputs supporting sink/source connection, with an input current of no more than 5 milliamperes per channel and an input delay of 1 to 7 milliseconds. It is equipped with 6 relay output channels, each rated at 2 amperes at 230 VAC or 5 amperes at 30 VDC, with a mechanical lifespan of over 100,000 operations. The processor runs at 400 kilohertz, with 34 kilobytes of program memory and 4.4 kilobytes of battery‑backed data memory. Two built‑in hardware high‑speed counters support up to 5 kilohertz, and an integrated real‑time clock is provided. The operating temperature ranges from 0 °C to +55 °C, and the storage temperature ranges from −40 °C to +70 °C. The protection class is IP20 for cabinet installation. It can be mounted on a DIN rail or with screws, with dimensions of 102 mm × 102 mm × 127 mm and a weight of about 0.9 kilograms. It has CE and UL certifications.

It uses screw terminals for 8 digital inputs, 6 relay outputs, and 230 VAC power connection. A standard RS‑232 port is available for program upload/download, ASCII communication, and Modbus RTU. The integrated CS31 bus based on RS‑485 can connect up to 31 remote I/O devices, expanding the system to around 1000 I/O points. LED indicators show power, run, error, and channel status. It supports the full range of AC31 analog and digital I/O modules for expansion.

It provides integrated logic control to directly connect sensors, switches, and actuators. The relay outputs offer strong load‑driving capability for solenoid valves and small motors without intermediate relays. The high‑speed counters and real‑time clock enable precise counting and timing. The CS31 bus ensures stable long‑distance communication with remote I/O without affecting the main controller. Battery‑backed memory retains programs and data after power loss. Channel‑level diagnostics and LED status indication help quickly locate faults.

It is suitable for small production lines, assembly machines, and material handling in factory automation. It applies to HVAC and building automation for air‑handling units, fan coils, and environmental monitoring. It is used in water treatment for pump and valve control and signal monitoring. It serves as a control core for packaging machinery, textile machines, woodworking equipment, and general OEM machinery with switching control needs.

Install vertically on a DIN rail with sufficient top and bottom clearance for heat dissipation. Keep away from strong vibration, moisture, and corrosive gases. Use qualified copper wires and tighten terminals securely. Verify 230 VAC power polarity and do not exceed relay contact ratings. Program and configure via ABB AC31GRAPH or supporting software. Regularly check terminal tightness and LED status, and clean dust with a dry cloth. Replace the backup battery every 3 to 5 years to ensure memory and RTC operation. Disconnect all power before disassembly or maintenance; do not operate with damaged wiring or open housing.