3/31/2012 5:53 PM | |
Joined: 3/21/2006 Last visit: 12/2/2024 Posts: 10229 Rating: (1181) |
Hello, Take a look at DB in Software Redundancy and BCD conversion error. Which organization blocks do you need for error handling? If you have troubles to find why is that message in diagnostic buffer attach here a FC50. Best regards, Hristo Mihalev |
3/31/2012 6:28 PM | |
Posts: 6 Rating: (0) |
sir you asked to attach FC50, ihave attached the whole programm please help me out ill be thakful to you Kind Regards, Umair Ahmed Attachment214k03 backup 140312.zip (534 Downloads) |
4/1/2012 2:04 AM | |
Joined: 10/7/2005 Last visit: 12/3/2024 Posts: 3028 Rating: (1057)
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Hello umair ahmed your BCD conversion errror in FC 50 is most likely caused by either DB6.DBW4 and/or DB6.DBW6 containing an invalid BCD value. Either of these DW's is used as an S5 Timer TV Setpoint and MUST contain a valid S5 Time value in BCD format (if they don't you'll get the error you observe). Check what values these two variables contain and what is writing into them (possibly a HMI/SCADA system as the X-ref does not list any writes into these two DW's). Attached is a printout of the S7 help which details the format an S5 Time variable and I hope this helps (and please let us know what you find). AttachmentLocation of a Timer in Memory and Components of a Timer.pdf (536 Downloads) |
Cheers |
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4/1/2012 8:15 AM | |
Posts: 6 Rating: (0) |
thanks for your reply, i did not find any thing abnormal in DB6 with DB6.DBW4 and DB6.DBW6. im attaching DB6, please have alook at it. Kind Regards, Umair Ahmed AttachmentDB6.pdf (515 Downloads) |
4/1/2012 1:35 PM | |
Joined: 10/7/2005 Last visit: 12/3/2024 Posts: 3028 Rating: (1057)
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Hello umair ahmed your screendump shows the offline Initial values, check what the values in DB6 are online in the PLC when the problem occurs (there is nothing else in FC 50 that can cause a BCD error, well, at least I can't find another reason for it). |
Cheers |
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