Description
The ABB 07KR51 (Part Number: 1SBP260011R1001) is a compact, high-performance PLC (Programmable Logic Controller) belonging to the Advant Controller 31 (AC31) / Procontic series. It is designed to function as either a standalone controller or as a decentralized master unit within the CS31 fieldbus system.
Product Parameters (Datasheet)
- Model Number: 07KR51
- Part Number: 1SBP260011R1001
- Series: Advant Controller 31 (AC31)
- Supply Voltage: 24 V DC
- Digital Inputs: 8 Integrated (24 V DC)
- Digital Outputs: 6 Integrated (Transistor outputs, 24 V DC, 0.5 A)
- Program Memory: 8 kB (RAM / EPROM)
- Data Memory: 4 kB (RAM)
- Communication Interface: CS31 system bus (RS-485)
- Programming Interface: Serial RS-232 (for connection to PC)
- Execution Time: Approx. 0.3 ms per 1k instructions

ABB 07KR51 1SBP260011R1001

ABB 07KR51 1SBP260011R1001

ABB 07KR51 1SBP260011R1001
Country of Origin
This industrial controller is engineered and manufactured by ABB in Germany, ensuring high European standards for industrial automation reliability.
Application Fields
The 07KR51 is a versatile unit used extensively in small to medium-scale automation:
- Machine Tooling: Controlling specialized drills, lathes, and saws.
- Building Automation: Managing lighting, ventilation, and access control systems.
- Conveyor Systems: Synchronizing belt speeds and sorting gates in logistics centers.
- Water Treatment: Monitoring small-scale pumping stations and filtration units.
- Packaging Machinery: Handling the logic for labeling and wrapping equipment.
Product Usage Instructions
- Mounting: Clip the unit onto a standard 35mm DIN rail. Ensure vertical orientation to facilitate natural convection cooling.
- Power Supply: Connect a stabilized 24V DC power source to the L+ and M terminals. Verify the polarity before energizing the unit.
- I/O Wiring: Connect field sensors to the digital inputs and actuators to the transistor outputs. Ensure the common return for inputs and outputs is properly grounded.
- CS31 Networking: Use a shielded twisted-pair cable for the CS31 bus. If the 07KR51 is the last device on the bus, ensure the termination resistor is properly set.
- Programming: Use ABB’s 907 AC 31 software to develop and download your control logic via the serial programming port.
Product Technical Description
The 07KR51 acts as the central intelligence for a CS31 fieldbus segment. It is characterized by its “Compact” form factor, which integrates the CPU, memory, and local I/O into a single housing. Technically, it is optimized for high-speed processing of binary signals. The integrated CS31 bus interface allows it to act as a bus master, controlling up to 31 remote expansion modules. This allows for a modular and distributed architecture where I/O can be placed close to the sensors and actuators while the 07KR51 manages the core logic and communication.
Q&A (Common Questions)
Q: Can I expand the number of I/O points on the 07KR51? A: Yes, via the CS31 system bus, you can connect various remote I/O modules (like the 07DI or 07DO series) to significantly increase the I/O count.
Q: What is the difference between the 07KR51 and the 07KT51? A: The “KR” typically denotes a unit with transistor outputs, while “KT” models often feature different output types or specialized communication capabilities.
Q: Does it retain the program if power is lost? A: The unit uses RAM for operation, but can be equipped with an EPROM or rely on an internal battery (if equipped) to maintain data and program integrity during power cycles.
Q: Can it communicate with modern Modbus or Ethernet networks? A: The base unit uses the CS31 protocol. To bridge to modern networks, a gateway or a newer AC500 series processor might be required.
Similar Model Recommendations
- ABB 07KT94 (Higher performance AC31 controller)
- ABB 07KR91 (Advanced compact version with more I/O)
- ABB 07DI92 (Remote digital input module for CS31)
- ABB 07DO91 (Remote digital output module for CS31)
- ABB PM571 (Modern AC500 series replacement/upgrade)
For more information on the ABB 07KR51 and other Advant Controller components, please visit our technical support portal.
