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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.
| Memory (User Program) | 512 kB – Flash EPROM, non-volatile RAM, SD Card |
|---|---|
| Memory (User Data) | 512 kB – Flash EPROM |
| Power Supply | 24 V DC |
| Communication Interfaces | Ethernet TCP/IP (onboard), 2× Serial (RS232/RS485 configurable) |
| Serial Port 1 | RS232/RS485 – Modbus Master/Slave, ASCII, CS31 Master |
| Serial Port 2 | RS232/RS485 – Modbus Master/Slave, ASCII |
| CS31 Bus | Yes (1) |
| Real-time Clock | Yes |
| Display | LCD (1 line, 8 function keys, 3 LEDs) |
| Max Digital I/Os | 320 DI / 240 DO (DC), max 10 extension modules |
| Max Analog I/Os | 160 AI / 160 AO, max 10 extension modules |
| Processing Speed (Logic) | 0.05 – 0.06 ms per 1000 instructions |
| Processing Speed (Word) | 0.05 – 0.09 ms per 1000 instructions |
| Processing Speed (Floating-point) | 0.5 – 0.70 ms per 1000 instructions |
| Degree of Protection | IP20 |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | -40 °C to +70 °C |
| Max Operating Altitude | 2000 m |
| Mounting | DIN Rail TH35-15 (IEC 60715) – Horizontal or Vertical |
| Programming Software | ABB Automation Builder |
| Dimensions (L × W × H) | 62 mm × 67.5 mm × 76 mm |
| Weight | 0.15 kg |
| Certifications | CE, UL, CSA, cULus, DNV, GL, BV, LR, GOST |
