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transfer tag from one PLC to another PLC through WinCC

6/8/2021 12:16 PM	Rate (0)
finny Regular Member Joined: 6/12/2008 Last visit: 1/10/2025 Posts: 3 Rating: (0)	Hi Ton Verra, I would like to do a similar thing, writing the Tag value from one PLC into another using Wincc. I have read through the forum & I see that a C Script solution was offered to you. Did this work or did you have to use VB Function detailed here to read & write your Tag Values? I would appreciate if you could detail the one which worked for you. Thanks, Finbar

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6/9/2021 8:05 AM	Rate (0)
bg2492 Posts: 7298 Rating: (2188)	Hello finny, alternatively to the GetTag- and SetTag-Funktions in ANSI C, you can use the VBS-functions, see examples in the manual: "WinCC V7.5 SP1 Scripting: VBS, ANSI-C, VBA" "Example: Writing tag values" https://support.industry.siemens.com/cs/ww/en/view/109773213/118089674379 "Example: How to Read Tag Values" https://support.industry.siemens.com/cs/ww/en/view/109773213/45951188235 Regards Georg Berghof
bg2492 Posts: 7298 Rating: (2188)
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This contribution was helpful to 1 thankful Users finny

6/10/2021 10:14 PM	Rate (0)
finny Regular Member Joined: 6/12/2008 Last visit: 1/10/2025 Posts: 3 Rating: (0)	Thanks for that Georg, this is useful for writing a tag value into one PLC, but I would like to use WinCC SCADA to read a value from one PLC connected to SCADA & write it into another PLC using VBS. I think this should still work, I just have to reference the HMI Runtime tags for both PLC's. I shall give it a try. Regards, Finbar

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