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KOP masking

Created by: WildChild at: 11/4/2011 10:30 AM (6 Replies)

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11/4/2011 10:30 AM	Rate (0)
WildChild Posts: 26 Rating: (0)	Hello, I'm programming CPU315-2 PN/DP. I'm trying to get the "Day of the week" using SFC READ CLK. I've obtained the byte that contains this number in the 4LSB, but I don't know how to get this 4 bits. Is it possible to mask bytes in KOP? I hope you understand my doubt...thanx!
WildChild Posts: 26 Rating: (0)
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11/4/2011 11:36 AM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 8/31/2025 Posts: 6874 Rating: (1368)	WildChild Hello, I'm programming CPU315-2 PN/DP. I'm trying to get the "Day of the week" using SFC READ CLK. I've obtained the byte that contains this number in the 4LSB, but I don't know how to get this 4 bits. Is it possible to mask bytes in KOP? I hope you understand my doubt...thanx! Dear WildChild, Check the attachment for LAD solution,Also check this link: How can you read out the date and time with SFC1 (READ_CLK) and input them with SFC0 (SET_CLK)? Best regards Attachment DAY.pdf (152 Downloads)
	Demo Channel on Youtube
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11/4/2011 12:33 PM	Rate (0)
WildChild Posts: 26 Rating: (0)	A question... if I try to do this in a FC it doesn't work but if I do the same in OB1 it works ok Why?
WildChild Posts: 26 Rating: (0)
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11/4/2011 12:47 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 8/31/2025 Posts: 6874 Rating: (1368)	WildChild A question... if I try to do this in a FC it doesn't work but if I do the same in OB1 it works ok Why? Dear WildChild, Please check the attachment for LAD solution in FC.It really works fine in my case.You may easily underestand the differences between 2 solutions! Best regards Attachment DAY_1.zip (107 Downloads)
	Demo Channel on Youtube
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11/4/2011 1:56 PM	Rate (0)
WildChild Posts: 26 Rating: (0)	Thank very much for your help!!
WildChild Posts: 26 Rating: (0)
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This contribution was helpful to 1 thankful Users hdhosseini

11/16/2011 8:39 AM	Rate (0)
WildChild Posts: 26 Rating: (0)	I'm using this FCs to read and write: How can you read out the date and time with SFC1 (READ_CLK) and input them with SFC0 (SET_CLK)? but I have a problem, when I want to set clock, If I put in the FC1 inputs (Day,week,hour...)a byte between 0-9 the function block works, but if I want to introduce a higher number (12,15,23...)it doesn't work. Why?How can I do to solution this problem?Thanx!
WildChild Posts: 26 Rating: (0)
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11/16/2011 8:16 PM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 8/31/2025 Posts: 6874 Rating: (1368)	WildChild I'm using this FCs to read and write: How can you read out the date and time with SFC1 (READ_CLK) and input them with SFC0 (SET_CLK)? but I have a problem, when I want to set clock, If I put in the FC1 inputs (Day,week,hour...)a byte between 0-9 the function block works, but if I want to introduce a higher number (12,15,23...)it doesn't work. Why?How can I do to solution this problem?Thanx! Dear WildChild, Please note that you can define new variable with date and time data type.My solution is implemented in FC2,See the attachment. But if you insist on using FC1, please define new variable and transfer data accordingly to corresponding local memory area. Best regards, Hamid Hosseini Attachment SFC0.zip (94 Downloads)
	Demo Channel on Youtube
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