Hello,

I need to access, by VBScript, a tag regardless of the acquisition cycle (TIA PORTAL v14 SP1 Upd4, WinCC Advanced - TP1200 Comfort)

Does anyone know where is the option 'SmartTags reads values from the cache' (see below, quote from the TIA Help) ?

I can't find it, neither in the Runtime settings nor the VBScript properties....

TIA Information System

Note

With the "SmartTags reads values from the cache" setting, values are read from the process image (cache) instead of directly from the controller.

The SmartTag object can also read values directly from the controller. However, you can then expect a substantially higher communication load between the HMI device and the controller.

Regards,

André

Hello Murof, Cumulus,

Thank you for your quick replies.

I set the acquisition cycle to "Cyclic Continuous" 100ms, but had this problem when the runtime starts (when the first page load I read a tag, but the communication cycle isn't done so the tag value is 0...)

To resolve my problem I created an analog alarm with a 2s delay (Internal tag with an initial value at 1, alarm at value 0), and this works.

Cumulus, your second link doesn't work

Regards,

André