Siemens SINUMERIK 828D Commissioning Manual page 1135
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CB1 (default)
The CHANGE method is not explicitly triggered when the screen is displayed. If the variable
has a configured NC/PLC variable, then the CHANGE method is of course still called.
Condition
Type
System or user variable
I/O field
Yes
No
Toggle
Yes
No
See also
CHANGE (Page 96)
SINUMERIK Integrate Run MyScreens
Programming Manual, 10/2015, 6FC5397-3DP40-5BA3
A.6 Behavior when opening the dialog (attribute CB)
Default setting
Execute the CHANGE
method
Yes
Yes
No
No
Yes
No
Yes
Yes
No
No
Yes
No
Yes
Yes
No
No
Yes
No
Yes
Yes
No
No
Yes
(per default the
first value from the
toggle is assigned)
No
Reference lists
Response
Due to the configured NC/PLC var‐
iable, there is always at least one
automatic call of the CHANGE
method with the current value of
the NC/PLC variable. The pre-as‐
signment of CB does not have an
effect.
The CHANGE method is called
with the pre-assigned value.
The CHANGE method is not called.
No call because there is no valid
value present to call the CHANGE
method.
Due to the configured NC/PLC var‐
iable, there is always at least one
automatic call of the CHANGE
method with the current value of
the NC/PLC variable. The pre-as‐
signment of CB does not have an
effect.
The CHANGE method is called
with the pre-assigned value.
The CHANGE method is not called.
The CHANGE method is called
with the first pre-assigned value of
the toggle list.
The CHANGE method is not called.
205
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