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How can we communicate with any number of controllers via the system function "Change Connection"

4/11/2014 12:44 PM	Rate (0)
SAID_S7 Posts: 3 Rating: (0)	dear experts How can we communicate with two controllers (redundant) station_A and station_B via the system function "Change Connection" WinCC flexible PC Runtime? -what is the program that I have to write in the script -how that WinCC flexible Forever Login with one laison regrets
SAID_S7 Posts: 3 Rating: (0)
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5/20/2014 11:34 PM	Rate (0)
Ibrahim Fathy Posts: 203 Rating: (12)	Hi You can check this link, you will find it helpful https://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&objId=23842653&objAction=csOpen&nodeid0=16502687&lang=en&siteid=cseus&aktprim=0&extranet=standard&viewreg=WW I tried the Method of "Connection of a scriptable panel with "software solution" to an H CPU ", and it works perfect With my best regards, Ibrahim www.miscegypt.com
Ibrahim Fathy Posts: 203 Rating: (12)
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5/21/2014 12:20 AM	Rate (0)
Madhava Silver Member Joined: 11/26/2011 Last visit: 4/11/2025 Posts: 508 Rating: (23)	SAID_S7 dear experts How can we communicate with two controllers (redundant) station_A and station_B via the system function "Change Connection" WinCC flexible PC Runtime? -what is the program that I have to write in the script -how that WinCC flexible Forever Login with one laison regrets Please find the attachment . Attachment Flex with H CPU.pdf (172 Downloads)

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This contribution was helpful to 1 thankful Users Juan.Mechatronic

5/26/2014 2:08 PM	Rate (0)
PPPD Advanced Member Joined: 7/19/2008 Last visit: 9/10/2024 Posts: 60 Rating: (8)	This function is normally used when we have to switch between two redundant controllers. When we have a redundantPLC we make two physical connectionsone with each PLC. Further we makea dummy connection which has allthe different tags to be communicated. Now based on the healthiness of the activePLC we will have to switch the properties of dummy connection with the physical connection using the Change Connectionfunction. Thus this will actually change the connectionin case of Active PLC failure and will retain data display on the Panel.

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