7/27/2023 9:51 AM | |
Joined: 7/29/2021 Last visit: 10/12/2023 Posts: 2 Rating: (0) |
Good day we are also facing similar issue in our 840D with TCU 30.3 after changing our CF card version from 4.74 to 4.95 with same backup. Machine get hanged waiting for HMI pops up and it gets restarted. there is non specific time for this . Network and USB also got disabled after upgradation . we've been directed by our siemens engineer to upgrade the PLC version to 4.95. . issue was not solved yet we are not able to establish networking or USB for program transfer . Sometimes it get enabled after PO reset . and it got disabled after power on . Attachmentwaiting for HMI.mpg (269 Downloads) |
7/27/2023 12:17 PM | |
Joined: 4/28/2015 Last visit: 4/9/2024 Posts: 36 Rating: (3) |
Siemens dropped support for older TCU's in 4.95. See https://support.industry.siemens.com/cs/ww/en/view/109821012 The 30.3 should be OK according to that note, but I had an OP15AT that was intermittent when connected to a 4.95 system. It would boot properly about half the time and required a power cycle on the TCU to recover if it failed to connect. HTH, SteveA |
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