Festo Checkbox Compact CHB-C-C, Manual

Page: 69 / 138

4. I/O module extensions of the Checkbox PLC
4-9
Festo P.BE-CB-COMP-EN en 0211a
With manual operation or control via the I/O module, pres-
sing the START/STOP button corresponds to the change of
signal LOW
>
HIGH
>
LOW.
Modification to the operating status with start or stop is sent
to the controller via O/21 (Checkbox ready).
Pulse-time diagram
Timing requirement to the higher-order controller
24 V
Power supply
Pin O/7
PLC_Power
Pin I/20 2
0
Type select
Pin I/5
2
1
Pin I/6
Remote start
Pin O/8
Feeder
Pin O/21
Box ready
t
ts
t
rs
t
d
Start Stop
0
1
0
1
0
1
0
1
0
1
0
1
t
rs
Type 2 Type 3
0.2 s
<
t
rs
< 1
s rs = remote start
t
ts
= min 0.1 s ts = type select
t
d
= duration of the switch-on delay d = delay