Table of Contents
Advertisement
3.2.7 Operating Mode Switch
The operating mode switch is located behind the cover flap.
Fig. 3.2.7-7: Operating mode switch
The switch is a push/slide switch with 3 settings and a hold-to-run function.
Operating Mode Switch
From middle to top position
From top to middle position
Lower position, bootstrap
Push down
(e. g with a screwdriver)
An operating mode is internally changed at the end of a PFC cycle.
Warning
If outputs are set when switching over the operating mode switch from RUN
to STOP they remain set! Switching off on the software side e.g. by initiators,
are ineffective, because the program is no longer processed.
Note
With "GET_STOP_VALUE" (library "System.lib") WAGO-I/O-PRO
provides a function which serves to recognize the last cycle prior to a
program stop giving the user the possibility to program the behavior of the
controller in case of a STOP. With the aid of this function the controller
outputs can be switched to a safe condition.
WAGO-I/O-SYSTEM 750
Bus System
Programmable Field Bus Controller 750-833
Function
Activate program processing (RUN)
Stop program processing (STOP)
For original loading of firmware,
not necessary for user
Hardware reset
All outputs and flags are reset; variables are set to 0 or
to FALSE or to an initial value.
The hardware reset can be performed with STOP as
well as RUN in any position of the operating mode
switch!
• 57
Hardware
g01xx10e
Advertisement
Table of Contents
