Playgrounds / PLC programming · S7-200 and GRAFCET / P4 Ladder editor on a virtual PLC-200 Drag contacts, coils, timers and counters onto rungs; run them on a simulated CPU 224 with the trainer panel.
Ladder editor on a virtual PLC-200 ExampleEmpty program One contact, one coil Series and parallel Start/stop station Set and reset On-delay timer Flasher Counter Edges and toggle Compare Exercise: self-holding Exercise: forward/reverse interlock Exercise: delayed lamp Start again Add a network Download .awl Download symbol table
Contacts Normally open contact Normally closed contact P Rising edge (P) N Falling edge (N) NOT NOT Compare Coils and boxes Coil S Set (S) R Reset (R) TON on-delay TOF off-delay TONR retentive CTU count up CTD count down MOV_W move word Drag an instruction onto the rung (or click it, then click a place). Drop below a contact to put it in parallel. Click an element to edit its address; Delete removes it.
PLC-200 panel Timing diagram STL view Symbol table
SIMATIC S7-200 · CPU 224 RUN STOP
I0.0 START (ON)
I0.1 STOP_NC (ON)
Time Pause 0.1× 0.25× 1× 4× One scan Cold restart t = 0.00 s · 0 scans
No errors: the program compiles.