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Technical Specifications and Processor Design
This central processing unit serves as the main controller for ABB AC500 PLC systems. The ABB 1SAP140200R0100 executes user programs and manages all I/O operations. You can mount this CPU directly onto a standard DIN rail in your cabinet. Its compact design integrates processor, memory, and communication ports in one unit. The unit weighs approximately 0.16 kilograms. Its dimensions measure 9.5 cm in height, 6 cm in width, and 7 cm in depth.
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | 1SAP140200R0100 |
| Category | Central Processing Unit / AC500 PLC CPU |
| Weight | 0.16 kg |
| Height | 9.5 cm |
| Width | 6 cm |
| Depth | 7 cm |
| Processor Type | 32-bit RISC (ARM Cortex-M3) |
| Clock Speed | 48 MHz |
| User Program Memory | 256 KB (Flash) |
| Data Memory | 128 KB (RAM, battery-backed) |
| Retentive Memory | 16 KB (EEPROM) |
| Programming Languages | Ladder Diagram, FBD, ST, IL, SFC |
| Communication Ports | 1 x RS-232/485, 1 x Ethernet |
| Communication Speed | 9.6 Kbps to 115.2 Kbps (serial) |
| Digital I/O Capacity | 128 points (local) / 1024 points (remote) |
| Scan Time | 0.2 microseconds per instruction |
| Energy Storage | Lithium battery for RAM backup |
| Component Count | Single PCB with CPU, memory, and interface circuits |
Processing Capabilities and Memory Structure
The CPU executes user programs with high speed and deterministic response. The onboard flash memory stores the application program permanently without battery. The ABB 1SAP140200R0100 uses battery-backed RAM for data memory retention. The CPU supports five IEC 61131-3 programming languages for flexibility. You can mix programming languages within a single control program. A green LED indicates proper processor operation and program execution. The CPU performs self-diagnostics at every power-up and continuously during operation.
Communication and Fieldbus Integration
The CPU includes a built-in RS-232/485 port for programming and HMI connections. You can connect this port to ABB CP600 panels or third-party devices. The ABB 1SAP140200R0100 supports Modbus RTU protocol as master or slave. The integrated Ethernet port adds TCP/IP and Modbus TCP connectivity. The CPU also serves as a CANopen master for distributed I/O networks. A yellow LED indicates communication activity on the serial and Ethernet ports. The module supports firmware updates through the Ethernet connection.
Installation and Operational Guidelines
You must clip this CPU onto a standard 35 mm DIN rail securely. The unit requires a 24V DC power supply for normal operation. The ABB 1SAP140200R0100 draws approximately 180 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 CPU 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 +60°C.