Which products are affected?
TensionControl template as of V2.0
What happens?
An activation or deactivation of the tension controller via code C3160 is not accepted.
When does the problem occur?
There are three different ways to activate or deactivate the tension controller:
1. Via the buttons tension control and open loop control in the VisTensionControl visualisation dialog.
2. Via the global variable g_bPctrlReset
3. Or via code C3160
These three methods cannot be used continuously as alternatives, i. e. as long as the tension controller is deactivated via the visualisation or global variable it is not possible to activate it via code C3160.
Possible diagnostics?
The behaviour can be observed by looking directly at the input of the POUTensionControl.TensionControlTTC.bReset process controller while the three alternatives are written in order to activate or deactivate the tension controller.
Short-term measures/recommendations?
The tension controller can be activated and deactivated via the global variable g_bPctrlReset.
Evaluation:
The activation of the tension controller can be controlled via the variable access. The tension controller cannot be operated via the code intended to be used for this job. If required a user code can be used for controlling the tension controller enable.
