Overview
The ABB PM573-ETH, also cataloged as the PM573-ETH Processor Module, operates as a dedicated hardware component for central processing and field network coordination within AC500 platform configurations.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | PM573-ETH |
| Product Type | PLC-AC500 Processor Module |
| Internal Memory | 512 kB |
| Communication Interfaces | Ethernet, 2x RS232/485, FBP |
| Integrated Display | Yes |
| Product Net Weight | 0.134 kg |
| Gross Weight | 0.158 kg |
| Product Net Dimensions (W x H x D) | 67.5 mm x 76 mm x 62 mm |
| Degree of Protection | IP20 |
| Minimum Order Quantity | 1 piece |
Backplane Bus Communication Velocity and Network Determinism
This processor module integrates directly into the AC500 terminal base, establishing dedicated backplane bus communication velocity to manage cyclic I/O data transfers. Network deterministic exchanges are handled over the integrated Ethernet interface, supporting fixed industrial protocols to prevent data collision. System latency is maintained within predefined limits through internal scheduling, allowing synchronized execution across local and distributed I/O density scaling profiles. Firmware flash compatibility checks are executed internally prior to runtime operations to prevent mismatched protocol processing across the communication interfaces.
Frequently Asked Questions
Q: How are the dual serial interfaces configured for RS232 or RS485 operation?
A: The two serial ports are software-configurable via the engineering environment, allowing specific pin assignments on the physical terminal interface to match either point-to-point RS232 or multi-drop RS485 physical layer topologies.
Q: What is the primary function of the integrated FBP interface?
A: The FieldBusPlug (FBP) interface provides a dedicated attachment point for external fieldbus neutral plugs, enabling the processor module to integrate into alternative industrial networks without requiring separate dedicated communication modules.
Field Installation Guidelines
- Mounting Orientation: The terminal base must be secured to a standard DIN rail or panel surface prior to clicking the PM573-ETH processor module into place to ensure mechanical stability and correct backplane connection.
- Shielding and Grounding: All communication cables (Ethernet and RS232/485) must utilize properly shielded, twisted-pair cabling. The shields must be grounded directly to the functional earth rail at the entry point of the enclosure to suppress electromagnetic interference.
- Wiring Separation: High-voltage AC power lines and low-voltage DC signal/communication cables must be routed through separate cable ducts with a minimum clearance of 100 mm to prevent cross-talk and inductive coupling.
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