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Which pin in the double word is bit 3

6/29/2023 9:52 AM	Rate (0)
xmnj Gold Member Joined: 9/30/2016 Last visit: 1/9/2026 Posts: 953 Rating: (6)	Please also see the attached screenshots. I have an alarm that at times pos up too frequently. In WinCC I have backtraced to alarm to be DB1001.DBW44 Bit 3 but which bit in that double word is bit 3? Attachment Counter.zip (342 Downloads)

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6/29/2023 10:33 AM	Rate (1)
Gustavo Antonio B... Silver Member Joined: 6/20/2017 Last visit: 10/6/2025 Posts: 486 Rating: (42)	DB1001.DBX45.3. Remember that bit can be writed in many different ways, in some cases losing the possibility to find it with the cross reference.
	Gustavo Antonio Banchetti Brucatori.
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This contribution was helpful to 1 thankful Users xmnj

6/29/2023 12:29 PM	Rate (0)
xmnj Gold Member Joined: 9/30/2016 Last visit: 1/9/2026 Posts: 953 Rating: (6)	Mauro.Bottizzo DB1001.DBX45.3. Remember that bit can be writed in many different ways, in some cases losing the possibility to find it with the cross reference. I hope you are sure? So is this the way it works - the 2 words are switched around? DB1001.DBW44 Bit 0 = DB1001.DBX45.0 DB1001.DBW44 Bit 1 = DB1001.DBX45.1 DB1001.DBW44 Bit 2 = DB1001.DBX45.2 DB1001.DBW44 Bit 3 = DB1001.DBX45.3 DB1001.DBW44 Bit 4 = DB1001.DBX45.4 DB1001.DBW44 Bit 5 = DB1001.DBX45.5 DB1001.DBW44 Bit 6 = DB1001.DBX45.6 DB1001.DBW44 Bit 7 = DB1001.DBX45.7 DB1001.DBW44 Bit 8 = DB1001.DBX44.0 DB1001.DBW44 Bit 9 = DB1001.DBX44.1 DB1001.DBW44 Bit 10 = DB1001.DBX44.2 DB1001.DBW44 Bit 11 = DB1001.DBX44.3 DB1001.DBW44 Bit 12 = DB1001.DBX44.4 DB1001.DBW44 Bit 13 = DB1001.DBX44.5 DB1001.DBW44 Bit 14 = DB1001.DBX44.6 DB1001.DBW44 Bit 15 = DB1001.DBX44.7

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6/29/2023 1:36 PM	Rate (1)
Gustavo Antonio B... Silver Member Joined: 6/20/2017 Last visit: 10/6/2025 Posts: 486 Rating: (42)	Yes, in Siemens CPU the data are stored in little endian order.
	Gustavo Antonio Banchetti Brucatori.
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This contribution was helpful to 1 thankful Users xmnj

7/3/2023 6:04 AM	Rate (0)
is_razi Experienced Member Joined: 3/13/2009 Last visit: 7/12/2025 Posts: 132 Rating: (1)	if you are working with winccflexible you can see the exact address (bit location) in the "trigger address" column of alarm page.
	Last edited by: is_razi at: 07/03/2023 06:04:36
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