ABB 1SAP140100R0170 - PM581-ETH CPU (AC500)

The ABB 1SAP140100R0170 is the order code for the PM581-ETH CPU of the AC500 PLC family, described by distributors as a programmable logic controller with 256kB of program memory, 24 VDC supply, Ethernet interface, two RS232/RS485 serial interfaces, FBP interface, SD card slot and LCD display. ABB conformity documentation lists the code as PM581-ETH, and listings across major distributors show consistent catalog descriptions and stock, including used units paired with TB511-ETH terminal bases. The Ethernet variant is the networked member of the PM581 family and is a direct replacement spare for installed PM581-ETH controllers. Confirm firmware revision and terminal base compatibility before ordering.