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DB 0

2/9/2013 8:23 AM	Rate (0)
Wijekoon Posts: 59 Rating: (2)	Dear All Write DB0 in several networks of my program but actually not in DB0 in the program DB Start with 1 not from 0. So why db0 write in like this DO FW 200 C DB 0 L DW 19 ;download status L KB 3 ><F O F 193.7 DO FW 200 C DB 0 ;Aufruf ketten DB - Call chains DB L KB 1 T DL 1 ;DX sollwerte - DX setpoints DO FW 254 C DB 0 L DW 170 T FW 250 DB arrangement as below DB 1 , DB5, DB7……. Not here in DB 0 But all networks come with DO function. Please explain this program correct or not. And also why DB0 Not in program in physically. Best Regards
Wijekoon Posts: 59 Rating: (2)
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2/9/2013 12:33 PM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 1/16/2026 Posts: 3054 Rating: (1062)	Hello Wijekoon As everyone of your "C DB 0" operation is preceeded by a "DO" command, the actual DB that is being opened is determined bythevalue in the variable that is part of the "DO" command. If for example FW200 containsa value of 7, your logic DO FW 200 C DB 0 will open DB7. Have a look at the programming manual for your S5 CPU and you'll find more on the DO command as as well asexamples on it's usage. I hope this helps
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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This contribution was helpful to 1 thankful Users Wijekoon

2/9/2013 3:28 PM	Rate (0)
Wijekoon Posts: 59 Rating: (2)	Dear Fritz Thank you and highly appreciated your support.I'll expect your support in future also. Best Regards Wijekoon
Wijekoon Posts: 59 Rating: (2)
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