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Day of the week in s7 300.

Created by: Dina at: 1/11/2006 1:57 PM (8 Replies)

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1/11/2006 1:57 PM	Rate (0)
Dina Posts: 11 Rating: (0)	how i find Day of the week in s7 300 plc's?
Dina Posts: 11 Rating: (0)
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1/12/2006 2:12 PM	Rate (0)
neo Posts: 264 Rating: (59)	Hello Dina, You can use the systemfunction SFC1 "READ_CLK" for reading the actual date and time. There you get a Variable of Type DATE_AND_TIME. In Step 7 Help you can see the description of this Datatype. There´s also a Byte containing 1-7 for Day of the week. best regards...
neo Posts: 264 Rating: (59)
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3/1/2006 10:19 PM	Rate (2)
Thijs Posts: 121 Rating: (16)	Here the STL code to read the day off the week. Sunday == 1 Monday == 2 .... Saturday == 7 Code: CALL "READ_CLK" // read CPU time RET_VAL:=#Return CDT :=#Time_And_Date LAR1 P##Time_And_Date // aim addres pointer to the TEMP variable L LB [AR1,P#7.0] // read the value containing the day value L W#16#F // Only the 4 LSB are usefull AW // Mask out the other bits T #TMP_DAYNR // Value containing the day off the week number
Thijs Posts: 121 Rating: (16)
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This contribution was helpful to 2 thankful Users Z.BolBol smiffy

12/18/2011 1:09 PM	Rate (0)
eden Posts: 39 Rating: (0)	hallo, I have read the DAY, how can i convert this data HEX to BOOL ?
eden Posts: 39 Rating: (0)
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12/18/2011 3:57 PM	Rate (0)
UMENCHO Diamond Member Joined: 3/21/2006 Last visit: 7/12/2023 Posts: 10221 Rating: (1177)	Sorry, what is the final target there? Because basically HEX to BOOL doesn't make any sense. Best regards, Hristo Mihalev

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This contribution was helpful to 1 thankful Users smiffy

12/18/2011 4:07 PM	Rate (0)
eden Posts: 39 Rating: (0)	I have read a DAY in this format: W#16#0003, how i can convert to a this format: 3 This is HEX to DEC or not ?
eden Posts: 39 Rating: (0)
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12/18/2011 4:18 PM	Rate (0)
UMENCHO Diamond Member Joined: 3/21/2006 Last visit: 7/12/2023 Posts: 10221 Rating: (1177)	Test BTI (BCD to INT) best regards, Hristo Mihalev

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This contribution was helpful to 1 thankful Users eden

1/13/2022 10:39 AM	Rate (0)
mr. problem Advanced Member Joined: 4/26/2021 Last visit: 6/11/2023 Posts: 26 Rating: (3)	Attachment bcd_int.png (303 Downloads)
	SML
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1/13/2022 7:42 PM	Rate (0)
mr. problem Advanced Member Joined: 4/26/2021 Last visit: 6/11/2023 Posts: 26 Rating: (3)	Weekday 1: Sunday 2: Monday 3: Tuesday 4: Wednesday 5: Thursday 6: Friday 7: Saturday my ans was 6. So, it was friday Attachment day.png (382 Downloads)
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