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Description
Application Scenarios
In a Taiyuan-based water treatment plant, the ABB PM591-ETH serves as the central controller for a chemical dosing and filtration system. The CPU’s Ethernet port connects to the plant’s SCADA system for real-time monitoring of pH levels and pump status, while the serial ports interface with local HMI panels. Its robust design ensures stable operation in the humid, electrically noisy environment of the plant, coordinating multiple remote I/O racks to control valves and motors across the distributed process.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | PM591-ETH (Order Code: 1SAP150100R0271) |
| Manufacturer | ABB |
| Product Category | PLC Central Processing Unit (AC500 Series) |
| Processor | 32-bit High-Performance CPU |
| Memory | 4 MB (User Program: 4096 kB, User Data: 5632 kB) |
| Communication Ports | 1x Ethernet (Industrial) + 2x RS232/485 (Serial) + FBP |
| Display | Integrated LCD with Backlight |
| Supply Voltage | 24 V DC (20.4 – 28.8 V DC) |
| Operating Temperature | 0 °C to +60 °C |
| Expansion Capability | Supports multiple digital/analog I/O modules (e.g., DI527, AI523) |
| Dimensions (WxHxD) | 67.5 mm x 76 mm x 62 mm |
| Mounting | DIN Rail (TS35) |
| Protection Rating | IP20 |
