InTouch: is primary or secondary data source active?

[ryangriggs]

Hi, does anyone know how to tell in Aveva InTouch (v2020) whether the primary or secondary data source is active (i.e is failover active or inactive)? Is there a system tag that indicates this?



I would like to show an indicator on the screen if the secondary is active. Any idea how to do this? I already know about $Sys$Status which toggles to False if the data source loses connection.


Note: we are not activating failover manually, but instead are letting InTouch decide when to go to the failover source (we are leaving the Failover Expression blank).

Thanks for any pointers!

 

[5618]

There might be a cleaner way to do it, but here's how I've done it with a while showing every 1000 Msec window script. You could make it an application script if you want. I'm only showing it in one driver status window.

CommDriver_ActiveServer=IOGetActiveSourceName("TopicName");

Then display CommDriver_ActiveServer or whatever tag name you choose as text.

You might also find these interesting:

CommDriver_PrimaryStatus=IOGetAccessNameStatus("TopicName", 1);
CommDriver_SecondaryStatus=IOGetAccessNameStatus("TopicName", 2);

Check out the manual for the comm drivers and you might find more cool stuff. There's a bunch of processor status and connection status available for ABCIP, not much for ABTCP except force failover. I don't know what's there for other drivers.

Unwanted spaces were appearing in ("TopicName") until I made it code. Interesting.

Edit: here's a popup of ABCIP info. I didn't get reset statistics to work and deleted it. L8x doesn't have all this memory information available. The bulk of the info doesn't involve scripts, just displaying TopicName:$SYS$OpenConnections and similar items found in the driver manual.

 

[5618]

Too late for another painfully slow edit. After reading your post more carefully, I expect you to put that in the application script and maybe use a condition script to show a popup when the active server tag == “Secondary” or whatever the text is for the secondary source.

Show secondary popup on true, hide secondary popup on false

 

[ryangriggs]

@5618, thank you very much. I think you have put me on the right path. I will explore this option.