Short Description¶

The processor modules PM55x-xP and PM56x-xP are the central units of AC500-eCo. Their main characteristics are:

128 kB (PM554-xP and PM564-xP types) program memory, 512 kB (PM556-xP and PM566-xP types) program memory
I/O bus (for expansion with max. 10 I/O devices)
COM1 (serial RS-485 interface)
8 digital inputs (PM55x-xP), 6 digital inputs (PM56x-xP)
6 digital outputs
2 analog inputs (PM56x-xP only; the 2 analog inputs can be configured as digital inputs)
1 analog output (PM56x-xP only)

The various processor module variants differ in the following characteristics:

Power supply (24 VDC or 100-240 VAC)
Type of the digital outputs (transistor or relays)
ETHERNET interface (only models with suffix -ETH) - Analog inputs/outputs (only type PM56x-xP)

All processor module variants can be expanded to include an memory card slot, a second serial RS-485 interface (COM2) and an RTC (real time clock).

Details and technical data are provided in the technical data section PM55x-xP and PM56x-xP.