Some Dont shows in OPC Test Client

Hello all,
I have a compact Logix CPU communication with Rslinx. Scada is Wincc is pulling tags from RSLINX OPC server. It is a working machine and now I am trying to add a few tags on the WinCC. I have added Real data types in the PLC and I can the the data in the OPC test client software. For some reason Bool tag doesn't appear in the OPC test client so I added a real type tag but for some reason, they don't show up in the OPC test client. Is there something I need to do for the tags to show up. All I am trying to is put these data on my WinCC HMI. Any help would be appreciated

Hello:

Just to make sure the problem is not in the OPC Client, maybe you can try some other OPC Client. The Softing OPC Client is downloadable free of charge and browses all the OPC Items in the address space. You may need to register to the Softing site to download this utility's installer.

https://data-intelligence.softing.com/us/support/datafeed-opc-sdks/datafeed-opc-classic-sdk/

I got the see the value in the OPC test client. How do you which data type to use . It is a bool in the PLC. When I select VT_bool in the opc I see 'off' not 0 but when I select VT_R4 I see 0. If am trying to read this tag from OPC to Wincc and do some scripting based on this tag. However I don't know which data type I should use. Technically it is Bool but for some reason rslinx OPC treats as different type. Can some one help

Hello Bornwild: Not sure if I understand your question. The OPC Client is reporting the items as VT_bool data type. I ahve not used Wincc but you should be able to treat VT_bool values of ON and OFF just like 1 and 0, respectively.
I may not be fully understanding your question.

finally got it to work. My bad, in the PLC address in the Wincc I missed the connection name and wrote only the tag name. Silly mistake

Good to know you fixed it, and nice to get the feedback too. Good luck with the rest of your project.