Product Introduction

Model Interpretation

• 1SBP: Unified part number prefix for ABB AC31/CS31 controllers.

• 260024: Base model code for 24 V DC unit with 8DI/6DO (relay)/3AI.

• R1001: Standard hardware revision.

• 07CR42: Commercial type designation of this AC31 controller.

Technical Parameters

• Series: Advant Controller 31 (AC31/CS31), compatible with Advant OCS.

• Power Supply: 24 V DC, range 19.2–30 V DC; typical power consumption 6 W.

• Digital Inputs: 8 × 24 V DC, sink/source selectable; input current ≤5 mA/channel; input delay 1–7 ms.

• Digital Outputs: 6 × relay (NO contacts); rating 2 A @ 230 V AC, 5 A @ 30 V DC; mechanical life >100 000 operations.

• Analog Inputs: 3 channels, configurable for 0–10 V, ±10 V, 0/4–20 mA; 12‑bit resolution.

• Processor: 400 kHz; 34 kB program memory, 4.4 kB battery‑backed data memory.

• Counters/RTC: 2 × hardware high‑speed counters (max 5 kHz); integrated real‑time clock.

• Environment: Operating 0 °C to +55 °C; storage −40 °C to +70 °C; IP20 (cabinet).

• Mechanical: DIN rail or screw mounting; dimensions 102 × 102 × 127 mm; weight approx. 0.8 kg.

• Certifications: CE, UL, cUL.

Interface and Communication Configuration

• Terminals: Screw terminals for 8DI, 6DO (relay), 3AI, and 24 V DC power.

• Serial: RS‑232 for program upload/download, ASCII, Modbus RTU.

• Fieldbus: CS31 bus (RS‑485‑based); up to 31 remote I/O modules; total system I/O approx. 1000.

• Indicators: LEDs for power, run, fault, and channel status.

• Expansion: Compatible with full AC31 analog/digital I/O module range.

Core Functions

• Integrated Control: Combines digital logic and analog signal processing for sensors, transmitters, and actuators.

• Relay Outputs: Reliable switching for solenoid valves, contactors, and small motors without intermediate relays.

• Analog Handling: Direct acquisition of pressure, temperature, flow, and level signals; scaling and closed‑loop control support.

• High‑Speed & Timing: Hardware counters for pulse/encoder inputs; RTC for scheduling and data logging.

• Distributed I/O: CS31 bus enables long‑distance, deterministic communication with remote I/O, offloading the main CPU.

• Data Retention: Battery‑backed memory preserves programs and data through power cycles.

• Diagnostics: Channel‑level fault detection and LED status for fast troubleshooting.

Application Scenarios

• Factory Automation: Small production lines, assembly stations, material handling with mixed digital/analog signals.

• Building & HVAC: Air‑handling units, chiller plants, environmental monitoring with temperature/humidity/pressure sensors.

• Water & Wastewater: Pump control, valve operation, level/flow monitoring, and dosing control.

• Process & OEM Machinery: Packaging, textile, woodworking, and general machinery requiring both logic and analog control.

Operation and Maintenance Instructions

• Installation: Mount vertically on DIN rail; allow top/bottom clearance for cooling; avoid vibration, moisture, and corrosive gases.

• Wiring: Use rated copper conductors; torque terminals securely; verify 24 V DC polarity and do not exceed relay contact ratings.

• Programming: Configure via ABB AC31GRAPH or supporting software.

• Routine Check: Inspect terminal tightness and LED status periodically; clean enclosure with dry cloth.

• Battery: Replace backup battery every 3–5 years to protect memory and RTC.

• Safety: Disconnect all power before service; do not operate with damaged wiring or open housing.