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Logo7 lost IP address

Created by: jphermans at: 10/14/2016 11:26 PM (7 Replies)

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10/14/2016 11:26 PM	Rate (0)
jphermans Posts: 26 Rating: (0)	Hello, i have a logo7 and logo8 running, Logo8 is running fine but logo 7 always changing the ip address. i put it on 192.168.1.62 and a few times later it is changed to 192.168.20.62. The gateway is also changed. Anyone an idea ho to solve this? It has worked before really good without any problems. There is nothing in the network with this type of address.
jphermans Posts: 26 Rating: (0)	Last edited by: jphermans at: 10/14/2016 11:26:49 PM Last edited by: jphermans at: 10/14/2016 11:27:17 PM
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10/15/2016 5:40 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/19/2026 Posts: 36484 Rating: (4552)	Of this kind misbehavior of a LOGO! that's the first time I hear this. The IP address of the LOGO! Is saved in a non-volatile FLASH memory. It can only be changed by - via the corresponding setting menu at the LOGO! directly (only in the stop state). - by transmitting a program with a different IP address. - if another program with a different IP address is stored on an SD card and a restart is performed. Other cases are not known to me and would indicate an error of the LOGO! to point out.

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10/15/2016 7:29 AM	Rate (0)
jphermans Posts: 26 Rating: (0)	I will remove the SD card out of the Logo. This has maybe still an old address. But why it is changed after sometime without rebooting or changing the program ?
jphermans Posts: 26 Rating: (0)
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10/15/2016 7:43 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/19/2026 Posts: 36484 Rating: (4552)	Are you sure the LOGO! does not restart? Maybe short-term voltage dips? Please change your program. Connect the flag M8 ( initialization flag) with the counter input of a remant counter. Show the counter in a message text. You can then use the counter to see whether restarting is performed.

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10/16/2016 7:54 AM	Rate (0)
jphermans Posts: 26 Rating: (0)	I have loaded my setup in logosoft and put it again in logo7 with "write to sd card" checked on and now the ip address stays ok. What is the remant counter ? How to check if the logo does not restart ?
jphermans Posts: 26 Rating: (0)
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10/16/2016 8:32 AM	Rate (0)
ixo65 Grandmaster Joined: 12/18/2014 Last visit: 1/19/2026 Posts: 36484 Rating: (4552)	As already mentioned, the flag M8 is the initialization flag. This flag has only been activated when the LOGO! starts up for the 1st cycle once a 1 signal. If the output of the M8 is now connected to the count input of a counter with which the remanence (or reventivity) is switched on, this counter keeps its counter reading in the event of a power failure (or in the STOP of the LOGO!) and increases this when the LOGO! to one. See attached video. Attachment Re-Start_counter.wmv (188 Downloads)

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10/16/2016 9:30 AM	Rate (0)
jphermans Posts: 26 Rating: (0)	Thank you. Have implement it and now I am waiting to see if something happens.
jphermans Posts: 26 Rating: (0)
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This contribution was helpful to 1 thankful Users ixo65

10/21/2016 10:28 AM	Rate (0)
Min_Moderator Posts: 4757 Rating: (122)	New question published by Vippi is split to a separate thread with the subject Logo TDE return to factory settings after reboot. Best regards Min_Moderator
Min_Moderator Posts: 4757 Rating: (122)
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