Bürkert 8619 multiCELL WM AC, Operating Instructions Manual

Page: 114 / 194

8.10.18 Configuring the "System switch" event
The "System switch" event can be used to force the result of a function using the "CMD SAFE" menu for this
function. The outputs of the function switch automatically to the values set in the "CMD safe" menu of each
function, when the "System switch" event is at "ON".
Process input
(PV)
"system switch" event
On/off
Hysteresis
Window
Fig. 79 : "System switch" event
Once the "System switch" event has been configured and activated, it is available in the list of process
variables on the "M0:MAIN" board. This list appears in the user view configuring and datalogging menus
to:
• Display the "System switch" event on one of the user defined "Ux" views: see section 8.10.8.
• Logging the values of the "System switch" event using the datalogger: see section 8.10.19.
Refer to section 8.9 to access the "Parameters" menu.
Parameters Functions System switch
Mode:
Invert:
PV
This is
when the
device is be-
ing parame-
tered............
....................
This is
when the
device is be-
ing parame-
tered............
....................
No
Yes
Delay: ENTERING
On/Off
1)
M1:
M0:MAIN
Mx:
...
Low: ENTERING
High: ENTERING
Window
2)
2)
Hysteresis
1)
The choices offered depend on the modules fitted and/or the options activated. See section 8.10.4 Consulting and/or
activating the available software options and section 8.16 Process inputs or values or process value network.
2)
These functions are present if "Mode"
≠
"TOR"
MODE : Choose the switching mode: "On/Off", "hysteresis" or "window".
Configuring in "On/Off" mode
PV: Choose a process input with 2 states, ON or OFF, associated with the "System switch" event.
INVERT : Invert the event or not.
DELAY : Choose the value of the time-out before switching.
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