The ABB PM590, also cataloged as the PM590 Processor Module, operates as a dedicated hardware component for high-speed logic execution and central processing within AC500 Distributed Automation PLC systems.
Hardware Specifications
Parameter
Specification
Model
PM590
Brand
ABB
Origin
Germany
Weight
0.137 kg (0.302 lbs)
Dimensions
67.5 mm x 76 mm x 62 mm
Operating Temp
0 to +60 deg C (32 to 140 deg F)
Power Consumption
Driven by rated 24 VDC supply (20.4 to 28.8 VDC range)
Backplane Bus Communication Velocity & Ethernet Integration
The ABB PM590 processor module features an integrated 5120 kB RAM architecture engineered for rapid command processing and deterministic control task execution. Utilizing high backplane bus communication velocity across AC500 expansion racks, the module manages real-time system synchronization through native Ethernet protocols, dual RS232/485 serial channels, and FieldBus Plug (FBP) interfaces. Firmware flash compatibility maintains long-term application program stability and structural synchronization across distributed I/O topologies.
Frequently Asked Questions
Q: How is the PM590 processor module installed on the system backplane?
A: The module snaps directly onto an AC500 terminal base, which establishes internal electrical connections to the backplane communication bus and power rails.
Q: What power supply limits are required for proper operation of the PM590 unit?
A: The processor operates on a nominal 24 VDC power supply, accepting an allowable input voltage range between 20.4 VDC and 28.8 VDC.
Q: Can the serial and Ethernet communication interfaces be operated simultaneously?
A: Yes, the module supports concurrent communication across its integrated Ethernet connection, two RS232/485 ports, and FieldBus Plug interface without degrading processing performance.
Field Installation Guidelines
Mount the matching AC500 CPU terminal base securely onto a standard 35 mm DIN rail inside the enclosure.
Ensure the 24 VDC power source is disconnected before mounting or removing the CPU module.
Align the PM590 module guides with the terminal base slots and push firmly until the locking mechanism fully engages.
Wire input power to the terminal base, verifying correct polarity (20.4 to 28.8 VDC operating range).
Ground all Ethernet and serial cable shields to the local earth ground terminal before applying system power.
