Okay, something I have not seen before..
RSView SE. I am working on an existing project. There is a value the customer wants trended and it is on the HMI. It is in the PLC as a tag (RS5000 20.05) It can be written to and read from the HMI. All is good.
I added the tag to the Historian. It is reading the values and logging data. All is good.
I open a configurable trend and I browse for the tag under Data and the correct PLC and the tag is not visible. I modify a existing parameter file to populate the tag name in a trend that is exists and works with other tags and the message I get is that the tag cannot be found. All is not good.
I open the Factory Talk Live Data Test client and browse to the PLC and click on "Online"..it populates a tag list and my tag is not in it. I double click on "Online" and in the window to the right and I CAN locate the tag. I add it to see the path and it is no different than the path from any other tag. It is being read and has good value.
I'm not sure why I cannot access this tag for a trend. It is a legit tag configured as an INT and it is at the Main Level (above the Main Program Level) so Globally accessible.
What am I missing here?
RSView SE. I am working on an existing project. There is a value the customer wants trended and it is on the HMI. It is in the PLC as a tag (RS5000 20.05) It can be written to and read from the HMI. All is good.
I added the tag to the Historian. It is reading the values and logging data. All is good.
I open a configurable trend and I browse for the tag under Data and the correct PLC and the tag is not visible. I modify a existing parameter file to populate the tag name in a trend that is exists and works with other tags and the message I get is that the tag cannot be found. All is not good.
I open the Factory Talk Live Data Test client and browse to the PLC and click on "Online"..it populates a tag list and my tag is not in it. I double click on "Online" and in the window to the right and I CAN locate the tag. I add it to see the path and it is no different than the path from any other tag. It is being read and has good value.
I'm not sure why I cannot access this tag for a trend. It is a legit tag configured as an INT and it is at the Main Level (above the Main Program Level) so Globally accessible.
What am I missing here?