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S7 DB connect to DPDP coupler

Created by: colinplym at: 2/2/2009 1:09 PM (3 Replies)

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2/2/2009 1:09 PM	Rate (0)
colinplym Posts: 2 Rating: (0)	Can any one explain how a dpdp coupler knows which db in S7 to get/send its info. I see in the coupler that I have addresses but cant seem to find a connection with the DB. Thanks
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2/2/2009 2:45 PM	Rate (0)
UMENCHO Diamond Expert Joined: 3/21/2006 Last visit: 12/2/2024 Posts: 10229 Rating: (1181)	Hello Look at DP/DP Coupler manual in chapter 4. You will see how to assign I/O areas of the DP master. With profibus address you reach this I/O area. Later in your program you can transfer each PIW to correspond DB (using SFC20 BLKMOV), and also use one DB and send to PQW. Hope this help you. regards

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2/2/2009 3:23 PM	Rate (0)
colinplym Posts: 2 Rating: (0)	Thanks. That helped clear up some sleepless nights
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2/2/2009 4:00 PM	Rate (0)
UMENCHO Diamond Expert Joined: 3/21/2006 Last visit: 12/2/2024 Posts: 10229 Rating: (1181)	colinplym ...That helped clear up some sleepless nights I am glad to heard that. regards

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