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Logo reverts program to earlier version after power loss

Created by: Silli_ML at: 4/29/2023 5:24 AM (11 Replies)

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4/29/2023 5:24 AM	Rate (0)
Silli_ML Regular Member Joined: 12/16/2013 Last visit: 5/12/2023 Posts: 10 Rating: (0)	Hello. I am expreriencing this with newest 8.3 cloud version logos. Lets say I have base program v1.0 and uploaded changes 1.1 and 1.2 , after switching power off and back on again, logo has revert to v1.0 version of program. Seems that amount of used blocks has no affect on this. Any toughts ? -Mika Solved. PM me for fix.
	Last edited by: Silli_ML at: 04/29/2023 05:29:25 Last edited by: Silli_ML at: 05/12/2023 14:52:58
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4/29/2023 5:30 AM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/1/2023 Posts: 31530 Rating: (3916)	Sorry but I don't understand what you mean by V1.0, V1.1 and V1.2. Do you mean a self-made LSC program version? Do you mean a self-made LWE project version? Or something else?

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4/29/2023 5:42 AM	Rate (0)
Silli_ML Regular Member Joined: 12/16/2013 Last visit: 5/12/2023 Posts: 10 Rating: (0)	Solved.
	Last edited by: Silli_ML at: 04/29/2023 06:05:04 Last edited by: Silli_ML at: 04/29/2023 06:09:01 Last edited by: Silli_ML at: 05/12/2023 14:52:10 Last edited by: Silli_ML at: 05/12/2023 14:52:26
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4/29/2023 5:49 AM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/1/2023 Posts: 31530 Rating: (3916)	Is it possible that you saved the program version V1.0 on the SD card when transferring it to the LOGO!? That would explain the effect. Remove the SD card from the LOGO!, transfer V1.1 or V1.2 to the LOGO!, switch the power supply of the LOGO! off and on again. Then V1.2 would have to work in the LOGO!.

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4/29/2023 6:44 AM
Silli_ML Regular Member Joined: 12/16/2013 Last visit: 5/12/2023 Posts: 10 Rating: (0)	Solved.
	Last edited by: Silli_ML at: 05/12/2023 14:51:47
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4/29/2023 7:04 AM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/1/2023 Posts: 31530 Rating: (3916)	Silli_ML Thanks for suggestions, maybee clearing logo and then download with "copy to sd card" will solve this issue. I´ll test and report. No, not at all. No activation of "Copy to SD card". Transfer only to program memory. The program memory of the LOGO! is non-volatile, so don't save it on the SD card. By every restart, LOGO first checks whether there is a program on the SD card. If so, LOGO! always loads the program from the SD card.

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4/30/2023 5:24 PM
Silli_ML Regular Member Joined: 12/16/2013 Last visit: 5/12/2023 Posts: 10 Rating: (0)	Solved.
	Last edited by: Silli_ML at: 05/12/2023 14:51:06
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4/30/2023 5:38 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/1/2023 Posts: 31530 Rating: (3916)	Just a note: I can't see what you (or others) are doing. But what I can say: Your error description corresponds exactly to the problem that the when transferring the program from LSC to LOGO! the option "saving on SD card" was actived.. When a new program is transferred to the program memory, the old program (if it exists) is overwritten, so it no longer exists in the LOGO!.

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5/12/2023 2:29 PM	Rate (0)
Silli_ML Regular Member Joined: 12/16/2013 Last visit: 5/12/2023 Posts: 10 Rating: (0)	Solved.
	Last edited by: Silli_ML at: 05/12/2023 14:30:28 Last edited by: Silli_ML at: 05/12/2023 14:50:40
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5/12/2023 2:37 PM	Rate (0)
ixo65 Grandmaster-Expert Joined: 12/18/2014 Last visit: 12/1/2023 Posts: 31530 Rating: (3916)	I'm sorry, but I see it differently. That is your responsibility. If you activate the "Copy to SD card" checkmark, this is not Siemens' fault. The default setting is that this option is not activated.

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