MACHIESAUTOMATION
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The PM573-ETH is a mid-range CPU module in the ABB AC500 PLC family, featuring 512 KB user program memory and 512 KB data memory. It operates on a 24 V DC supply and includes on-board Ethernet and dual serial ports (configurable RS-232/RS-485) for programming and communication. The unit has an integrated LCD display with function keys for diagnostics, supports up to 10 I/O expansion modules (handling hundreds of I/O points), and provides real-time clock and high-speed processing for modular automation tasks. Designed for DIN-rail mounting, the PM573-ETH PLC CPU is certified for industrial use (CE, UL, marine approvals) and operates in ambient temperatures from 0 to +60 °C.
| Supply Voltage | 24 V DC (±20%) |
| Memory | 512 kB program memory + 512 kB data memory (Flash/RAM) |
| Communication | Ethernet TCP/IP (built-in), 2× RS-232/485 serial ports (Modbus, ASCII, CS31) |
| Max I/O Expansion | Up to 10 local I/O modules (e.g. up to 320 DI / 240 DO total) |
| Integrated Display | Yes – LCD display with 1 line, 8 function keys (for status/diagnostics) |
| Mounting | DIN rail 35 mm (horizontal; vertical with derating) |
| Operating Temp | 0 °C to +60 °C (ambient) |
| Certifications | CE, cULus, ABS, DNV-GL, BV marine approvals; RoHS compliant |
| Dimensions (W×H×D) | 67.5 mm × 76 mm × 62 mm (module size) |
| Function | PLC CPU for AC500 system – executes user program logic and manages I/O modules |
