PLC Programming | How to Read Ladder Logic & Ladder Diagrams
| Symbol | FANUC Name | Description | |--------|------------|-------------| | -] [ - | Normally open contact | Closed when bit = 1 | | -]/[ - | Normally closed contact | Closed when bit = 0 | | -( )- | Coil | Sets bit = 1 when rung is true | | -(/)- | Inverted coil | Sets bit = 0 when rung is true | | -(S)- | Set coil | Latch ON | | -(R)- | Reset coil | Latch OFF | | [END1] | End of program | Must be at end of ladder |
X1.0 Y2.0 Y2.0 --] [------] [----------( )- | | | X1.1 | +--]/[----+
The CNC core handles motion (axes, spindle), but the PMC handles everything else .