ABB 1SAP140100R0100 is a compact high-performance CPU module of the AC500 PLC series, with the standard model name PM581 B1. It is designed for medium-complexity automation tasks, integrating Ethernet, dual serial ports, an SD card slot, and a local LCD with keys. It delivers reliable processing power, flexible communication, and easy maintenance for small-to-mid-size industrial control systems.

1SAP140100R0100 is the full order part number. PM581 B1 is the standard designation: PM581 denotes the CPU series, B1 indicates the hardware version, and the suffix R0100 specifies the exact revision. It belongs to the ABB AC500 PLC line, fully compatible with the series’ terminal bases, I/O modules, and communication accessories.

Power supply is 24 V DC (20.4–28.8 V DC), power consumption approx. 8 W. It features 256 kB flash memory for programs, 256 kB RAM for data, and 32 kB retentive data memory. Processing speed: 0.07 μs per bit instruction, 0.1 μs per word instruction, 0.8 μs per floating-point instruction. Operating temperature 0 °C to +60 °C, storage temperature -40 °C to +70 °C, IP20 protection class. Certifications include CE, cULus, and RoHS. Dimensions 62 × 76 × 67.5 mm, weight 0.136 kg.

Equipped with one 10/100 Mbps Ethernet RJ45 port supporting Modbus TCP, HTTP, FTP, and SNMP. Two configurable serial ports (COM1: RS232, COM2: RS485) support Modbus RTU, CS31, and ASCII protocols. An SD card slot enables program backup, restore, and firmware updates. A built-in LCD with physical keys allows local status display, parameter setting, and fault diagnosis without a PC. A FieldBusPlug (FBP) interface supports optional fieldbus modules.

Provides efficient execution of complex logic, process control, and motion control tasks. Multi-protocol communication enables seamless connection with HMIs, drives, instruments, and SCADA systems. Local LCD and keys simplify on-site operation and maintenance. Supports large-scale I/O expansion with up to 320 digital inputs, 240 digital outputs, 160 analog inputs, and 160 analog outputs. Hot-swap of expansion modules reduces downtime. SD card enables fast program backup and offline firmware upgrades.

Suitable for factory automation such as production lines, packaging machines, and machine tools. Widely used in process industries including water treatment, HVAC, chemical, and pharmaceutical. Applied in intelligent building control, energy management systems, and small-to-mid-size power distribution automation. Ideal for upgrading legacy systems to support Ethernet networking and remote monitoring.

Mount on a standard DIN rail and connect 24 V DC power correctly. Install the matching terminal base and required I/O modules. Connect communication cables, configure parameters, and download programs via ABB Automation Builder before operation. Keep the environment ventilated and dry; ensure all terminals are tight. Back up programs regularly via SD card. Perform quarterly routine inspections and annual comprehensive tests. Disconnect power before disassembly or replacement to ensure safety.