Pens disappears from the PowerChart after linking its source with indirection binding

[Ahad_Imtiaz]

Hi Community,
I am facing an issue with the indirection of power charts. I want to add dynamic tag bindings to my power chart. Here I am sharing the steps with screenshots that I am following.

Step 1:
Selecting the status tag (sts) in the tag browser of power chart.

Pen appears with the source:
histprov:IgnitionDB01:/drv:kl_cj2:/tag:vdc_kl_testinstances/cb/status/sts

Step 2:
Now I use expression of indirection binding. There is no error in the binding as it can be seen in the image below. view.params.tagPath value is VDC_KL_TestInstances/CB

Step 3:
But when I press apply and ok, the pen disappears and not even showing in the perspective launcher.

What is the issue here?

Hope to hear from you all soon.

[lrose]

What is the value of view.params.tagPath, my guess is that it isn’t what you think it is in the designer.

Have you tried this in a browser?

[Ahad_Imtiaz]

view.params.tagPath value is VDC_KL_TestInstances/CB

[lrose]

I think that the case matters.

Try this for the expression:

"histprov:IgnitionDB01:/drv:kl_cj2:/tag:" + lower({view.params.tagPath}) + "/status/sts"

[Ahad_Imtiaz]

I tried this before but didn’t worked in browser. On perspective launcher, pen doesn’t shown.

Only seen in designer not in launcher

[Ahad_Imtiaz]

Adding an expression binding in data/source like this resolves the issue.

lower({view.params.tagPath}) + “/system/sts”

No need to enter like this:
“histprov:IgnitionDB01:/drv:kl_cj2:/tag:” + lower({view.params.tagPath}) + “/status/sts”