
6 |
Key Functions
If you press the F3 function key while in the main menu, the KEY FUNCTIONS picture appears on the Panel screen:
Key LEDs:
Keys F1 – F3 are assigned with key functions, i.e., specific variables in the PLC are changed when they are pressed.
F1 A value of 10000 is written to PLC address %R0005.
F2 PLC address %R0006 is toggled between values 0 and 20000. This key always switches from one of two values to the other.
F3 A value of 1 is output as global data bit b0 (%GQ001) as long as the key is held down; a value of 0 is output as long as the key is released.
Pressing the F4 key returns you to the main menu.
Chapter 6 Demo Project | 6 - 13 |