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Technical Specifications and Unit Design
This controller basic unit serves as a compact PLC for ABB Advant AC31 systems. The ABB 1SBP260011R1001 executes logic programs for small to medium machine control applications. You can mount this unit directly onto a standard DIN rail in your cabinet. Its integrated design combines processor, power supply, and I/O in one unit. The unit weighs approximately 0.28 kilograms. Its dimensions measure 11 cm in height, 7 cm in width, and 6 cm in depth.
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | 1SBP260011R1001 |
| Category | Controller Basic Unit / AC31 PLC System |
| Weight | 0.28 kg |
| Height | 11 cm |
| Width | 7 cm |
| Depth | 6 cm |
| Processor Type | 16-bit microcontroller |
| Program Memory | 32 KB (Flash) |
| Data Memory | 8 KB (RAM, battery-backed) |
| Digital Inputs | 12 points (24V DC) |
| Digital Outputs | 8 points (transistor, 0.5A) |
| Analog Inputs | 2 channels (0-10V DC) |
| Communication Port | 1 x RS-232/485 (Modbus RTU) |
| Timer/Counter Capacity | 64 each (software configurable) |
| Scan Time | 1.5 milliseconds per 1K instructions |
| Power Supply | 24V DC (±20%) |
| Energy Storage | Lithium battery for RAM backup |
| Component Count | Single PCB with CPU, memory, I/O, and power supply |
Processing Capabilities and Integrated I/O
The unit executes user programs with consistent scan cycle performance. The onboard flash memory stores the application program permanently without battery. The ABB 1SBP260011R1001 includes 12 digital inputs for sensor and pushbutton connections. It also provides 8 transistor outputs for driving solenoids and indicator lamps. Two analog inputs accept 0-10V signals from potentiometers or transducers. A green LED indicates proper processor operation and program execution. The unit performs self-diagnostics at every power-up automatically.
Communication and Expansion Options
The built-in RS-232/485 port supports Modbus RTU protocol as master or slave. You can connect this port to an HMI panel or SCADA system easily. The ABB 1SBP260011R1001 allows expansion with up to seven extension modules. You can add additional digital I/O, analog I/O, or communication modules. The unit automatically detects connected expansion modules at power-up. A yellow LED indicates communication activity on the serial port. The unit supports firmware updates through the serial connection.
Installation and Operational Guidelines
You must clip this unit onto a standard 35 mm DIN rail securely. The unit requires a 24V DC power supply for normal operation. The ABB 1SBP260011R1001 draws approximately 150 mA from the 24V supply rail. The lithium battery retains RAM data for up to three years without power. You should replace the battery every five years for reliable operation. The unit stores no program in RAM when you remove the battery. Therefore, keep the application backup on your programming computer. The operating temperature ranges from -20°C to +55°C.