User-Defined Variables; User-Defined Variables - List View - Siemens SINUMERIK 840D sl Function Manual

03/2013

3.3 User-defined variables

3.3.1 User-defined variables – List view
Function description
User-defined variables permit values to be processed that were created by the user
in SINUMERIK-Integrate configured logic. These values are defined as user-
defined variables so that they can be addressed in the downstream logic.
The "stop watch" is a user-defined variable. The stop watch permits a time to be
measured that can be started and stopped with any signals. The same signal can
be used for both the start and the stop. The measured time is recorded as a time
series (variable monitor). It can automatically be checked against limit values. A
variable monitor must be set up for this. Any variable can be used for the start and
stop signals. If a PLC variable is used in the S7 syntax (not OPC), the determined
time cycle is exact to the millisecond. The maximum repeat frequency for a
subsequent stop should lie in the higher double-digit seconds range.
Fig. 3-19: User-defined variables – list view
Function
Residual
memory
Remaining
performance
PLC settings
Number of lines
Name
Perf
Details
Last
measurement
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SINUMERIK Integrate AMB, AMC, AMM, Function Manual (FH) - 03/2013
Description
See: PLC triggers
Changes to the window to create the logic for a
user-defined variable.
The value shown here specifies the lines per
window that shall be represented in this menu.
You can select up to 200 lines. A scroll bar will
then be displayed in the window.
Switches to the window to edit the created
user-defined variable of the line.
User-assigned name for the user-defined
variable.
Each type of user-defined variables has its
own icon.
The performance required from the PLC.
Logic to determine the value of the user-
defined variable.
Time at which a value was last determined for
the variable
3 Setting up functions
3.3 User-defined variables
Type
DISPLAY
ACTION
DISPLAY
SELECTION
ACTION
DISPLAY
DISPLAY
DISPLAY
DISPLAY
DISPLAY
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