Hi.
I am for the first time experimenting with WinCC Flexible as an OPC client up against an S7 via Simatic Net.
(background follows, you may ignore - I just add this to avoid the usual questions "why do you do it this way ?"):
We want to run WinCC Flex RT on the same PC as Simatic Net with OPC cennections, and (importantly) it must be possible for the customer to modify the OPC connections. This excludes the WinCC Flexible project integrated in the STEP7 because the customer do not have WinCC Flexible engineering software or STEP7, only Simatic Softnet and WinCC Flex RT.
(background finished).
I have two problems:
1. I cannot create symbols of BOOLs or BYTE types. I can add tags that are directly addressed to BOOL and BYTE addresses, but not with the symbols. And that is too bad, because I have made a lot of BOOL and BYTE tags in the original project and I have addressed them symbolically. Using the Reconnect function, all the other symbols were found.
2. I cannot add tags by browsing OPC symbols. If I try I get an error message "Init OPC Connection Failed". I have selected to let OPC use all Symbols from the STEP7 project, and I have compiled in NetPro.
Does the OPC server have to run on the enineering PC. And do I have to have it loaded with the Simatic Net project ?
That would be too bad, because my engineering PC is not the same as the target PC, and so I cannot load the project into the Station Configurator.
Thanks for any advice that can help me with this matter.
I am for the first time experimenting with WinCC Flexible as an OPC client up against an S7 via Simatic Net.
(background follows, you may ignore - I just add this to avoid the usual questions "why do you do it this way ?"):
We want to run WinCC Flex RT on the same PC as Simatic Net with OPC cennections, and (importantly) it must be possible for the customer to modify the OPC connections. This excludes the WinCC Flexible project integrated in the STEP7 because the customer do not have WinCC Flexible engineering software or STEP7, only Simatic Softnet and WinCC Flex RT.
(background finished).
I have two problems:
1. I cannot create symbols of BOOLs or BYTE types. I can add tags that are directly addressed to BOOL and BYTE addresses, but not with the symbols. And that is too bad, because I have made a lot of BOOL and BYTE tags in the original project and I have addressed them symbolically. Using the Reconnect function, all the other symbols were found.
2. I cannot add tags by browsing OPC symbols. If I try I get an error message "Init OPC Connection Failed". I have selected to let OPC use all Symbols from the STEP7 project, and I have compiled in NetPro.
Does the OPC server have to run on the enineering PC. And do I have to have it loaded with the Simatic Net project ?
That would be too bad, because my engineering PC is not the same as the target PC, and so I cannot load the project into the Station Configurator.
Thanks for any advice that can help me with this matter.