Change Value Of Selected Variable - Siemens CP-8000 User Manual

9.2.2.2.4 Change Value of Selected Variable

The changing of values is only possible for signal inputs. Signal outputs and local variables
are overwritten by the application program every cycle, therefore a permanent forcing for
those values is not provided.
It is not possible to force more than one signal input at the same time. If you want to change
more than one signal input, this can only be done one after another.
When forcing a signal input, the according signal is automatically separated from the input
process image and therefore this signal is not overwritten each cycle. Additionally the applica-
tion program is switched to the test mode automatically.
The test mode is maintained even if you switch to other pages within the session with the tar-
get device. If the communication with SICAM WEB is disconnected, the test mode is automat-
ically terminated by the target device after 30 seconds.
You can terminate the test mode manually by pressing the button
·
All values for the signal inputs are taken from the process image again
·
The manually changed values during test mode are then overwritten by the respective
process value again
Warning
The value change of a signal input can – dependent on the programmed logic – have an impact on the
status of signal outputs.
The change of state of signal outputs with the plant running can lead to damage to persons and machines.
Ensure that aggregates in the control area of the command output as well as those subsequent aggre-
gates in the process chain are protected and that persons in the vicinity are warned.
This is how to overwrite the value of a variable:
Below the IL you can enter a variable name from the IL into the input field V
also copy a variable name from the IL and paste it into an input field.
If the variable name is invalid or empty, the type is displayed as unknown and the button
is disabled.
SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual
DC8-037-2.02, Edition 10.2017
Engineering via SICAM WEB
:
ARIABLE
Unrestricted
. You can
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