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Word to bit

Created by: WildChild at: 10/14/2011 9:09 AM (7 Replies)

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10/14/2011 9:09 AM	Rate (0)
WildChild Posts: 26 Rating: (0)	Hello, I'm trying to convert WORD to BIT . I need to create a FB with 1 Word input and 16 bool outputs. I suppose it is simple, but I'm new in Siemens. Thank you for your support...
WildChild Posts: 26 Rating: (0)
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10/14/2011 9:45 AM	Rate (0)
yy1 Gold Member Joined: 3/24/2009 Last visit: 7/9/2024 Posts: 535 Rating: (112)	Dear WildChild, which language do you use? The simples way is to use SCL: [code] FUNCTION FC999 VAR_INPUT in1: WORD; in1_bool AT in1: STRUCT x0: BOOL; x1: BOOL; END_STRUCT; END_VAR VAR_OUTPUT out0: BOOL; END_VAR BEGIN out0:=in1_bool.x0; END_FUNCTION [/code] Hope this helps, Best regards, yy1
	Last edited by: yy1 at: 10/15/2011 9:34 AM Changed FB to FC Last edited by: yy1 at: 10/14/2011 10:10 AM
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10/14/2011 9:55 AM	Rate (0)
WildChild Posts: 26 Rating: (0)	I use KOP
WildChild Posts: 26 Rating: (0)
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10/14/2011 10:59 AM	Rate (0)
yy1 Gold Member Joined: 3/24/2009 Last visit: 7/9/2024 Posts: 535 Rating: (112)	Dear WildChild, in KOP ist's a little bit more difficult. You can use the following code. It contains only one assignment, so you have to add the missing networks. After importing the source you can change the language of the block to KOP. [code] FUNCTION FC 999 TITLE = VERSION : 0.1 VAR_INPUT in : WORD ; END_VAR VAR_OUTPUT out0 : BOOL ; out1 : BOOL ; END_VAR VAR_TEMP tmp8 : BOOL ; tmp9 : BOOL ; tmp10 : BOOL ; tmp11 : BOOL ; tmp12 : BOOL ; tmp13 : BOOL ; tmp14 : BOOL ; tmp15 : BOOL ; tmp0 : BOOL ; tmp1 : BOOL ; tmp2 : BOOL ; tmp3 : BOOL ; tmp4 : BOOL ; tmp5 : BOOL ; tmp6 : BOOL ; tmp7 : BOOL ; END_VAR BEGIN NETWORK TITLE = L #in; T LW 0; NOP 0; NETWORK TITLE = U #tmp0; = #out0; END_FUNCTION [/code] Best regards, yy1
	Last edited by: yy1 at: 10/15/2011 9:35 AM Changed FB to FC
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10/14/2011 11:36 AM	Rate (0)
WildChild Posts: 26 Rating: (0)	Thank you very much yy1. I have a doubt: In the line TLW0; You are assigning de input #in to the defined TEMP var "tmp"? In the next network you read tmp0 to assign it to the out0, isn't it?
WildChild Posts: 26 Rating: (0)
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10/14/2011 12:08 PM	Rate (0)
yy1 Gold Member Joined: 3/24/2009 Last visit: 7/9/2024 Posts: 535 Rating: (112)	Dear WildChild, the instruction T LW 0 moves the content of the #in-parameter to the memory-area, which is occupied by the variables tmp8 - tmp7. By choosing this declaration-order I access the correct bit in the word LW0 and can move it to the output. If you don't want to use the byte-switch, you can move tmp0-tmp7 to the start of the temp-section. Best reagrds, yy1
	Last edited by: yy1 at: 10/14/2011 12:20 PM
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10/14/2011 12:45 PM	Rate (0)
WildChild Posts: 26 Rating: (0)	Great! Thank you very much!
WildChild Posts: 26 Rating: (0)
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This contribution was helpful to 1 thankful Users yy1

10/14/2011 1:45 PM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 11/11/2024 Posts: 3026 Rating: (1057)	Hello WildChild just a couple of additional pointers from my side: 1.) Make it an FC instead of FB (sing an FB with IDB would be wasteful if you don't need STAT variables) 2.) Feel free to download also a ready made (STL programmed) FC from THIS link. 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 yy1

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