3/25/2010 6:30 AM | |
Posts: 691 Rating: (37) |
Dear hac_am2003
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3/25/2010 7:47 AM | |
Joined: 10/7/2005 Last visit: 9/20/2024 Posts: 3021 Rating: (1054)
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Hello hac_am2003 please check your "set PG/PC interface" setting (see Options menu in Simatic Manager). You problem could be as simple as it being set to MPI, but the MPI/DP port of your CPU isconfigured as a DP port (via the configuration on the MMC that you put into the CPU which would also neatly explain the BF LED). Anyway, try settignit to "PC Adapter (AUTO)"and see if this helps. |
Cheers |
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3/25/2010 9:15 AM | |
Joined: 4/24/2006 Last visit: 9/20/2024 Posts: 8740 Rating: (1168) |
Dera hac_am2003, I guess you used the MMC in another CPU. I would advise you to reset the MMC in CPU 315-2PN/DP. Please have a look at this link: how do you reset a SIMATIC S7-300 CPU and MMC (default reset or overall reset)? follow the three steps, the mentioned times are important. And a step 4 would be: hold in MRES position for at least 5 seconds. Best regards, Wizard |
3/26/2010 9:28 AM | |
Joined: 4/24/2006 Last visit: 9/20/2024 Posts: 8740 Rating: (1168) |
Hi, When SF led is on, you will have to go to Diagnostic buffer to see what's wrong. Best regards, Wizard |
12/9/2011 10:25 AM | |
Posts: 32 Rating: (1) |
Dear hac_am2003 I had the same problem.... Please note that a used MMC will be having information of old PLC.When yoyu insert it to another PLC, itwill try to read data from MMC which does not belong to it. That is why it continuosly blinks .... You need to format it and insert... Hope am correct... With Regards Pradeep Prabhu B |
12/18/2011 6:33 AM | |
Posts: 167 Rating: (4) |
Hi By MRES the "Actual values" will lost and change to "Initial values" on DBs. |
12/19/2011 3:49 PM | |
Joined: 7/15/2011 Last visit: 8/8/2024 Posts: 48 Rating: (0) |
Reply So it wont change the state of Mbits right? if i wanna to reset the mbits too, is there any possibilty? |
12/19/2011 6:47 PM | |
Joined: 3/21/2006 Last visit: 9/10/2024 Posts: 10228 Rating: (1181) |
No, basically will not reset M bits. But using start up OBs you can assign to that M bits some "initial' values like in How can you change the startup and actual values only via the OP in such a way as to be immune to power failure and general reset? Tips and tricks for calling and parameterizing SFBs, SFCs and IEC standard functions Best regards, Hristo Mihalev |
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