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problems with CPU and MMC

2/23/2012 8:56 AM	Rate (0)
eden Posts: 39 Rating: (0)	Hallo, I have some problems with CP312. When i have a MMC in CPU the SF LED light and i dont have any program on it only hardware settings. When i remove the MMC SF LED dont light. When i try to upload a program from MMC i become a some old programs on it, before i download a only hardware settings. How can i solve this ?
eden Posts: 39 Rating: (0)	Last edited by: O_Moderator at: 2/23/2012 11:47 AM new subject after splitting from /tf/WW/en/Posts/68844#top Last edited by: eden at: 2/23/2012 8:57 AM
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2/23/2012 9:18 AM	Rate (0)
SK(2*A) Posts: 140 Rating: (0)	Hi, Better replace your MMC card with another working one and see if still you face the same issue. FOr my case I changed the MMC and and still the problem was there and I have sent it for repair after confirmation from the siemen's technical support.
SK(2*A) Posts: 140 Rating: (0)
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2/23/2012 9:29 AM	Rate (0)
eden Posts: 39 Rating: (0)	I dont have it, i have only this.
eden Posts: 39 Rating: (0)
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2/23/2012 9:44 AM	Rate (0)
umencho Grandmaster Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating: (1183)	How do you format or reset an MMC (Micro Memory Card) for SIMATIC S7-300 CPUs?

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2/23/2012 9:57 AM	Rate (0)
eden Posts: 39 Rating: (0)	Hallo, Thnx, aber i try this and dont work. "With S7-300 CPUs (except CPU 318), the function "Reset in the as-delivered status" is implemented as of firmware version V2.5." My CPU have a 2.0 firmware
eden Posts: 39 Rating: (0)
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2/23/2012 12:18 PM	Rate (0)
umencho Grandmaster Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating: (1183)	I thought about reset of MMC, not CPU. Best regards, Hristo Mihalev

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2/23/2012 12:48 PM	Rate (0)
miami Platinum Expert Joined: 8/31/2005 Last visit: 12/16/2025 Posts: 2198 Rating: (331)	To erase the old program you can do: - Go online and mark all blocks and press "delete" (ignore the meassage SFCs and SFBs can't be deleted) or - Gooffline open the MMC in SIMATIC Manager, mark all and delete all.
	Last edited by: miami at: 2/23/2012 12:50 PM Last edited by: miami at: 2/23/2012 12:49 PM
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This contribution was helpful to 1 thankful Users eden