ABB 07CR42Base model: 07CR42 Extensible Stand-Alone Central Unit (AC31 Series Compact PLC)
& Core Function Description s Base model: 07CR42 Extensible Stand-Alone Central Unit (AC31 Series Compact PLC) Two voltage variants with ABB order codes: 07CR42-24VDC | Order No.: 1SBP260023R1001 Official Function Description The 07CR42 is a compact, DIN-rail mountable standalone PLC central controller from ABB’s AC31 distributed automation product line. It delivers integrated digital input/output, analog signal processing, and serial communication for small-to-medium industrial machine automation. Built-in native I/O: 8 isolated 24VDC digital inputs, 6 relay digital outputs (2A @ 250VAC), 3 analog inputs (2×±10V voltage, 1×temperature sensor input)
Product Description
& Core Function Description s Base model: 07CR42 Extensible Stand-Alone Central Unit (AC31 Series Compact PLC) Two voltage variants with ABB order codes: 07CR42-24VDC | Order No.: 1SBP260023R1001 Official Function Description The 07CR42 is a compact, DIN-rail mountable standalone PLC central controller from ABB’s AC31 distributed automation product line. It delivers integrated digital input/output, analog signal processing, and serial communication for small-to-medium industrial machine automation. Built-in native I/O: 8 isolated 24VDC digital inputs, 6 relay digital outputs (2A @ 250VAC), 3 analog inputs (2×±10V voltage, 1×temperature sensor input)
Technical Specifications
| Brand | ABB |
|---|---|
| Model | 07CR42 |
| Category | Industrial Automation |
| Base model | 07CR42 Extensible Stand-Alone Central Unit (AC31 Series Compact PLC) |
| CR42-24VDC | Order No. | 1SBP260023R1001 |
| CR42-120/230VAC | Order No. | 1SBP260024R1001 |
| Short catalog label | AC31 PLC 8DI/6DO-Rel./3AI, 34kB Program Memory |
| Built-in native I/O | 8 isolated 24VDC digital inputs, 6 relay digital outputs (2A @ 250VAC), 3 analog inputs (2×±10V voltage, 1×temperature sensor input) |
| Expandable architecture | Supports up to 6 external I/O extension modules (digital/analog) to scale I/O capacity |
| Communication | RS232 port for programming, ASCII serial, or Modbus RTU slave/master communication |
| Analog Inputs (AI) 3 total | 2×±10V voltage, 1×PT100 temperature input |
| OEM bulk order (10+ pcs) | Discount 10–15% off list price; 12-month ABB factory warranty included |
| Notes | Prices vary by regional stock; Southeast Asia & EU stock have wider price fluctuations; rare surplus lots may cost 20% higher |
| Digital input modules | XI16E1 |
| Relay output modules | XO08R1 |
| Combined analog/digital mix modules | XC08L1, XM06B5 |
| Programming cable | ABB RS232 AC31 programming adapter |
| Software | AC31GRAPH PC programming software |
| Communication accessories | RS232 to Modbus RTU converters for SCADA linking |
| Width | 120 mm |
| Height | 93 mm |
| Depth | 84 mm |
| Root cause | 24VDC/AC supply voltage outside tolerance range or shorted field input wiring; symptoms = red fault LED constant on, controller fails to enter RUN mode. Fix: Isolate shorted sensor wiring, stabilize cabinet supply voltage. |
| CR41 (Smaller memory variant | 16kB program storage, same I/O count; lower cost for simple logic programs) |
| 07CR42-24VDC | Order No.: 1SBP260023R1001 |
| 07CR42-120/230VAC | Order No.: 1SBP260024R1001 |
| Channels | 2 channels |
| Mounting | DIN rail |
| Speed | 34kB |
| Speed 2 | 16kB |
| Origin | Germany / Original |
| Condition | New Original Factory Sealed |
| Warranty | 12 Months |
| Shipping | Global Delivery via DHL/FedEx/UPS |