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tag list doesn't work as it should?

Created by: q-man at: 11/22/2009 10:05 PM (2 Replies)

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11/22/2009 10:05 PM	Rate (0)
q-man Posts: 15 Rating: (0)	hello! i have a problem with tag list. maybe i do not really understand the logics but let me explain. i have configured one output field in which i would like to display five different texts depeding on the state of a system. i've also made a text list starting with 1 and ending with 5 (talking about number that is before text, don't know the definition of this numer. maybe it is a bit?), 1 should be for example sistem in stop. 2 is sistem running, 3 is sistem error... etc. my idea is to write to db1.dbw0 an integer number which changes from 1 to 5 according to system state. then, i made a tag wich reads from db1.dbw0. data type is integer. am i making any sence here? hope so. my problem is that even if number changes from 1 to 5 in db1.dbw0, my output field only displays two states. one is empty field, and one is with text behind number 1. hope anyone can help. if this doesn't make sence to anyone, i will make screenshots tomorrow and will upload them here. i would be very grateful for any help! Attachment 3screenshots.zip (20 Downloads)
q-man Posts: 15 Rating: (0)	Last edited by: q-man at: 11/23/2009 8:39 AM so, another day has come and no help arrived. as promised, i will put three screen shots so anyone who might have the knowledge to help can have better info. on the screenshot named output_field is shown which type of field i''''''''m trying to use and how have i configured it. on the screenshot named text_list is shown which texts i am trying to display in the field mentioned just above and how is all aranged. on the screenshot named tag_text_list is shown which tag am i trying to use to display one of this five texts and how have i configured it my idea is to use integer value from 1 to 5 to address text from text list with number 1 to 5 in front ot the text. for example - if db1.dbw18 has integer value 3, i want to display text after the number 3 in text list. forgot to tell - i am using CPU315-2DP and TP170B mono, and program is made in step7 ver 5.4 + sp2 and winCC 2005 sp1. i believe that here is somebody who can help me. many thanks!
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11/23/2009 10:34 AM	Rate (0)
The Body Gold Member Joined: 5/13/2008 Last visit: 12/18/2019 Posts: 836 Rating: (70)	Hi q-man, edit your textlist, selection ist actually set to "Bit number (0 - 31)" instead of "Range (... - ...)".
	mfG / Best regards Roland
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11/23/2009 2:25 PM	Rate (0)
q-man Posts: 15 Rating: (0)	hello roland! first, many thanks for advice. unfortunatelly, it did not work. hopeless as i felt, i called siemens custommer support. they had a solution. solution to this problem is: the number before text actually indicates to which bit in a byte, or word, will trigger the text to appear. from some reason, if multiple bits were trigered, text did not display. i've changed from integer to byte, that is the first step. left (0-31) as it is ok. but i hat to change s7 program. when writing integer 5 to db1.dbb18, i actually set bit 0.4 and 0.1 and it did not work. you know, decimal 5 is binary 0000_0101. what i had to do is to set just one bit, the one i need. so, instead of L 3 T DB1.DBB18 to display text after number 3, i just used S DB1.DBX18.3 that actually loaded number 8 to db1.dbb18 instead of 3, but this is good because decimal 8 binary it is 0000_1000 (bit 0.3 is the only one activated) and my multiple texts are finally ok. so many thanks to the man who answered the phone!
q-man Posts: 15 Rating: (0)
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