Control Panel Lock - Festo Checkbox Compact CHB-C-C Manual

4. I/O module extensions of the Checkbox PLC

4.3.7 Control panel lock

4-18
Via input I/11 (IN24_Key_Inhibit), the two buttons START/
STOP and STATUS/TEACH on the Checkbox PLC can be locked
to prevent unauthorised use. The Checkbox PLC can then be
started or stopped only via I/6 (Remote start). A change to
the TEACH mode is not possible.
Pin Signal level
I/11 HIGH
LOW
Display with control panel lock
Lock
– Continuous display in the stop status
– Display (duration 1.5 s) when the START/STOP
button is pressed.
CheckKon
The STATUS/TEACH button can also be locked with CheckKon.
Only the START/STOP button can then be enabled with the
HIGH signal at I/11. The STATUS/TEACH button remains
locked. A change to the teach mode is not possible. If the
STATUS/TEACH button is actuated, the display "Fix" will be
shown for 1.5 ms; the Checkbox PLC will then switch to the
AUTO mode again.
Meaning
Button lock
Button enable
Festo P.BE-CB-COMP-EN en 0211a