Festo Checkbox Compact CHB-C-C, Руководство пользователя

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4. I/O module extensions of the Checkbox PLC
4-8
Festo P.BE-CB-COMP-EN en 0211a
Functions of the PLC Remark Pin
Special functions
2)
External sensor
1) I/10 E.g. metal detector or colour sensor for an
additional check of the material properties
which cannot be checked via the contour
registering.
Camera trigger I/9 Externally controlled switching on and off of
the picture display under especially difficult
conditions.
External faults I/19 E.g. for monitoring the pneumatic supply of
the actuators. If there is a fault, the Check-
box PLC will be switched to fault status E01
by means of a pressure switch.
1)
Counter function and special function “External sensor” cannot be used at the same time.
2)
De-activated at the factory Function can be activated and adapted with CheckKon.
4.3.1 Start/stop mode
The remote control of the Checkbox PLC assumes as a
prerequisite that:
– power is applied to the Checkbox PLC
– the boot procedure is concluded (O/7 = HIGH)
– the signal types Select 0 and Select 1 are stable.
The Checkbox is started with a sequence of signals (pulse) at
pin I/6 LOW
>
HIGH
>
LOW and stopped again with the se-
quence of signals LOW
>
HIGH
>
LOW (recommended pulse
duration 500 ms).
Pin Signal sequence Meaning
I/6 LOW
>
HIGH
>
LOW Starts the Checkbox
LOW
>
HIGH
>
LOW Stops the Checkbox