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Is it possible to connect a PLC to WinCC without certificate?

11/30/2023 8:48 AM	Rate (0)
ren973 Posts: 1 Rating: (0)	Dear All, Is possible to connect a PLC to Wincc without certicicat . ------------------------------------------------------------------------------------------ Split from WinCC7.5 connection to 1500 "certificates".
ren973 Posts: 1 Rating: (0)	Last edited by: Jen_Moderator at: 11/30/2023 13:13:45 New subject after splitting
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11/30/2023 4:06 PM	Rate (0)
itafusna Gold Expert Joined: 2/17/2020 Last visit: 1/15/2026 Posts: 1251 Rating: (237)	Hi, Yes, at least until WinCC V7.5 SP2 Update 4 and V2.9 of the S7-1500 firmware, as detailed in the FAQ: WinCC Runtime V7.5 SP2 ≥ Update 4: No connection to S7-1500 ≥ V2.9 / S7-1200 ≥ V4.5 / SW Controller ≥ V21.9
	A rating will be well appreciated.
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This contribution was helpful to 2 thankful Users Alex.P Murof

12/15/2023 9:40 AM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 1/15/2026 Posts: 16638 Rating: (1944)	Hello ren973 if you have WinCC V7.5 SP2 Upd4 or newer then you have to use the WiniCC export Tool in TIA Portal to get the certificate from the PLc if the PLC has the newer FW with the secure communication, ALSO if you have deactivated! If you have an older Version of WinCC < Upd4 then you can deactivate the secure communication and work as usual without the certificate from TIA Portal (there is automatically used a basic certificate in the background) Bye Murof
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