Control unit 143
ABB PM573
No. Description
1. 6x 7-segment status display with backlight
2. “Triangle” displays for “item”
3. “Square” displays for “state”
4. 3 status LEDs
5. 8 function keys
6. Memory card slot
7. Type label
8. Battery compartment (lithium battery TA521)
9. Memory card (MC502)
10. I/O bus for I/O modules
11. Processor module slot (processor module on terminal base)
12. FieldBusPlug interface
13. Power supply (removable 5-pin terminal block)
14. Serial interface COM1 (removable 9-pin terminal block)
15. PM5xy-ETH D-sub 9 for serial interface
16. Ethernet connector (RJ45)
17. DIN rail
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