ABB 1SBP260022R1001, commercial designation 07CT41, is a compact extensible central unit from the Advant Controller 31 (AC31/Procontic CS31) series. It integrates a CPU, 24 V DC power supply, 8 isolated digital inputs, and 6 transistor outputs in a single unit. Designed for high‑speed logic and switching control, it offers direct‑drive capability for 24 V DC loads and flexible distributed I/O expansion, ideal for small‑to‑medium automation systems requiring fast response.

1SBP is the unified part number prefix for ABB AC31/CS31 controllers. 260022 denotes the 24 V DC base unit with transistor outputs. R1001 indicates the standard hardware revision. 07CT41 is the commercial name for this AC31 compact central unit.

This controller belongs to the ABB Advant Controller 31 series and is compatible with Advant OCS. The power supply is 24 V DC ±10%, with a typical power consumption of 5 W standalone and 10 W with expansion modules. It has 8 channels of 24 V DC isolated digital inputs supporting sink/source connection, input current ≤5 mA per channel, and input delay of 1–7 ms. It is equipped with 6 transistor output channels, each rated at 0.5 A at 24 V DC, with a maximum switching frequency of 1 kHz and short‑circuit protection. The processor runs at 400 kHz, with 34 kB of program memory and 4.4 kB of battery‑backed data memory. Two built‑in hardware high‑speed counters support up to 5 kHz, and an integrated real‑time clock is provided. The operating temperature ranges from 0 °C to +55 °C, storage temperature from −40 °C to +70 °C, and 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 0.8 kg. It has CE and UL certifications.

It uses screw terminals for 8 digital inputs, 6 transistor outputs, and 24 V DC 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 high‑speed logic control to directly connect sensors, switches, and 24 V DC actuators. The transistor outputs offer fast, efficient load driving for solenoid valves, contactors, and small DC motors without intermediate relays. The high‑speed counters and real‑time clock enable precise pulse counting and timing control. 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, especially where fast I/O response is required. It applies to HVAC and building automation for air‑handling units, fan coils, and environmental monitoring with 24 V DC field devices. 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 high‑speed 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 24 V DC power polarity and do not exceed transistor output current 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.