WAGO-I/O-SYSTEM 750
Device Description
53
750-880, 750-880/025-000 ETHERNET Programmable Fieldbus Controller
Manual
Version 1.0.1
Note
Mode selector switch position is negligible in software start/stop!
The position of the mode selector switch is not important when starting or
stopping the PFC application from WAGO-I/O-
PRO
.
One of the following functions is active, depending in which of the three static
positions "top", "center" or "bottom" the switch is located at a power on or in a
hardware or software reset:
Table 1: Mode selector switch positions, static positions at Power On / reset
Positions of the mode
selector switch
Function
Up position
"RUN" - activate program processing,
Boot- project (if available) is started.
Center position
"STOP" - stop program processing,
PFC- application is stopped.
Down position
After a PowerOn reset, the controller is in Bootstrap mode.
The controller performs the following functions, if a position change of the switch
is performed during the current operation:
Table 2: Mode selector switch positions, dynamic positions during the current operation
Position change of the
mode selector switch
Function
From the top to the
center position
"STOP" - stop program processing,
PFC- application is stopped.
From the center to the
top position
"RUN" - activate program processing,
Boot project (if available) is started.
From the center to the
bottom position
No reaction.
After Power On/Reset the Bootstrap loader is started on the service
interface.
From the bottom to the
center position
No reaction.
Press down
(e.g., using a
screwdriver)
Hardware reset
All outputs are reset; variables are set to 0, FALSE or to an initial value.
Retain variables or markers are not changed. A hardware reset can be
performed either at STOP or at RUN at any position of the mode
selector switch.
Restart the fieldbus controller.
The operating mode is changed internally at the end of a PFC cycle.
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