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RE: S7-300 PLC Password forgot problem.

Created by: K.Jagan at: 12/15/2014 7:51 AM (3 Replies)

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12/15/2014 7:51 AM	Rate (0)
K.Jagan Experienced Member Joined: 1/21/2011 Last visit: 1/23/2024 Posts: 162 Rating: (2)	Dear All, I have problem in one of our machine which has been commissioned long back in 2009. program backup is with us, but while uploading the PLC program form the CPU314 it showing the password windows. actual we have forgot the password & ther no document for password. In the original backup we having the password is showing ***** we couldnot find out. kindly help me in the issue to solve the password problem. Thanks & regards K.Jagan

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12/15/2014 8:05 AM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, This older PLC have a MMC or not? How do you format or reset an MMC (Micro Memory Card) for SIMATIC S7-300 CPUs? After that load hardware config (with new password) and program again. Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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This contribution was helpful to 3 thankful Users Ste39 Ahmad Magdy hag010

12/15/2014 8:08 AM	Rate (0)
Ste39 Platinum Member Joined: 1/21/2013 Last visit: 9/4/2024 Posts: 4620 Rating: (707)	jagan.k Dear All, I have problem in one of our machine which has been commissioned long back in 2009. program backup is with us, but while uploading the PLC program form the CPU314 it showing the password windows. actual we have forgot the password & ther no document for password. In the original backup we having the password is showing ***** we couldnot find out. kindly help me in the issue to solve the password problem. Thanks & regards K.Jagan Hello jagan.k, If you have original project go to Hardware configuration and change the password but you have to reset the MMC and re-download the program to the CPU How do you format or reset an MMC (Micro Memory Card) for SIMATIC S7-300 CPUs?

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6/27/2016 11:30 PM	Rate (0)
kamoo Posts: 2 Rating: (1)	contact me if you want how you can solve the problem
kamoo Posts: 2 Rating: (1)	Last edited by: Min_Moderator at: 6/29/2016 12:09:42 PM Contact data removed
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