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The meaning of address codes

2/12/2021 4:38 PM	Rate (0)
PRADNILMAN Posts: 16 Rating: (0)	I am just tring to know how the communication between drive and CPU transfering data! Is there any person can he expects what could be meaning of these address in this part of list statement language taken from a function block specialy programming for drive parker AC +690 that relied on dp network ? I can't have understand their ? do you have any ideas for these two variables DWORD indicated in below? thanks for answer : : = L 26.1 L #IN0 T LW 28 L DW#16#1002000C <-------- ? T LD 30 L W#16#0 T LW 34 L DW#16#87000010 <-------- ? T LD 36 TAR2 LD 40 UC SFC 14 P#L 28.0 P#L 0.0 P#L 30.0 : :
PRADNILMAN Posts: 16 Rating: (0)	Last edited by: NAYMEN at: 02/14/2021 03:25:02
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2/13/2021 12:04 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 1/20/2026 Posts: 3054 Rating: (1062)	Hi NAYMEN two things come into play here to understand what the code snippet does 1.) SFC14 --> see its online help 2.) ANY Pointer format --> see attached pdf based on these, here are the comments for your question marks L #IN0 T LW 28 L DW#16#1002000C // Bytes 0-3 of ANY Pointer: 10hex for S7, 02 for data type BYTE, 000C as repetition factor T LD 30 L W#16#0 // Bytes 4&5 of ANY Pointer: DB number T LW 34 L DW#16#87000010 // Bytes 6-9 of ANY Pointer: 87hex for memory area (= V memory which is local memory of the calling block), 000010 as BYTE.BIT address (=2.0) T LD 36 TAR2 LD 40 UC SFC 14 P#L 28.0 P#L 0.0 P#L 30.0 Attachment Format of the Parameter Type ANY.pdf (549 Downloads)
	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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2/13/2021 8:57 PM	Rate (0)
PRADNILMAN Posts: 16 Rating: (0)	Thanx expert I was promoted by one ant rank Thanx for your explain details
PRADNILMAN Posts: 16 Rating: (0)
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This contribution was helpful to 1 thankful Users fritz

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