ABB AC500 PLC I/O modules use plug-in screw or spring-cage terminal blocks that can be pre-wired and plugged into the module, enabling fast replacement without rewiring during maintenance.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | Terminal 1 | Signal or power wiring | I/O |
| 2 | Terminal 2 | Signal or power wiring | I/O |
| 3 | GND | Ground terminal | GND |
ABB AC500 PLC I/O modules use plug-in screw or spring-cage terminal blocks that can be pre-wired and plugged into the module, enabling fast replacement without rewiring during maintenance.