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HMI alarm bit to word

Created by: AZRAIQI at: 6/19/2014 9:06 AM (14 Replies)

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6/19/2014 9:06 AM	Rate (0)
AZRAIQI Posts: 67 Rating: (1)	Hi All, I use HMI alarm & should use "word" type and select every single bit anyway there's no problem here but I need to read bits from DBs (AIs_DB) "bool" type so what i should do ?? [code]PLC1200 TIA v12 SP1[/code]
AZRAIQI Posts: 67 Rating: (1)	Last edited by: AZRAIQI at: 6/19/2014 9:07 AM
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6/19/2014 10:31 AM	Rate (0)
Kelu Posts: 88 Rating: (12)	Hi AZRAIQI, Could you be more precise on your explanation, it's not clear for me (add screenshots...) And what about this thread you open few days ago? Thanks
Kelu Posts: 88 Rating: (12)
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6/19/2014 11:30 AM	Rate (0)
AZRAIQI Posts: 67 Rating: (1)	Kelu Hi AZRAIQI, And what about this thread you open few days ago? Still not solved >< about my problem now i should insert too much screens Plz add me on skype that easy for me to share a photo [snip] ... btw I attached one screen shots hope that its clear what i need :$ Attachment Untitled.jpg (3186 Downloads)
AZRAIQI Posts: 67 Rating: (1)	Last edited by: CS Moderator at: 6/22/2014 4:24 PM contact data deleted
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6/19/2014 12:52 PM	Rate (1)
William_B Posts: 5225 Rating: (1198)	Hi. Try this.. LINK Inside the PLC program you can use bits. For the HMI you use only the word. To make it simple you can use for example * HMI: %MW100 * PLC: %M101.0 - %M101.7 and %M100.0 - %M100.7 Notice the order of the bits. For DB, example 1.. * #ALARM declared as a word - also linked to the HMI. * The PLC addresses the individual bits as #ALARM.x0 - #ALARM.x15. For DB, example 2.. ---------This one is more difficult, ask for detail if this is what you want to do. ---------See the JPG example. This is possible for TIA 11 and 12 too. * ALARM declared as a word - also linked to the HMI. * Inside the DB, after the #ALARM declaration you use the AT decleration command. The #ALARM can then be broken down into individual bits through a STUCT or ARRAY. Helpful? w Attachment Visual clue_Using the AT command (TIA V13).jpg (3698 Downloads)
William_B Posts: 5225 Rating: (1198)
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6/19/2014 2:09 PM	Rate (0)
AZRAIQI Posts: 67 Rating: (1)	William B. Hi. Try this.. LINK Inside the PLC program you can use bits. For the HMI you use only the word. To make it simple you can use for example * HMI: %MW100 * PLC: %M101.0 - %M101.7 and %M100.0 - %M100.7 Notice the order of the bits. For DB, example 1.. * #ALARM declared as a word - also linked to the HMI. * The PLC addresses the individual bits as #ALARM.x0 - #ALARM.x15. For DB, example 2.. ---------This one is more difficult, ask for detail if this is what you want to do. ---------See the JPG example. This is possible for TIA 11 and 12 too. * ALARM declared as a word - also linked to the HMI. * Inside the DB, after the #ALARM declaration you use the AT decleration command. The #ALARM can then be broken down into individual bits through a STUCT or ARRAY. Helpful? w Thanks for your replaying the 1st example not helpful fot me becase i have alrady the bit i want see it in HMI aralm And the 2nd example really i couldn't understood it :( The main in my problem as i show in PIC. how to view a difirent bits in the alarms what i should do exactly :( [snip] ... ** I follow your link but i dont know is that solve my problem or what you show but i still trying ;) thanks all Attachment D:\tmp\upload\MWeXQ.zip (642 Downloads)
AZRAIQI Posts: 67 Rating: (1)	Last edited by: CS Moderator at: 6/22/2014 4:23 PM Picture attached
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6/19/2014 2:49 PM	Rate (1)
Jens_app Gold Member Joined: 1/5/2011 Last visit: 11/29/2024 Posts: 815 Rating: (123)	Dear Mr. AZRAIQI, You can use absolute addressing in your hmi to solve this: Create an hmi tag and link it to your DB by inserting absolute address %DB3.DBW0 (for example, insert the first address where your alarmbits start) Make sure the wordin your datablock contains the alarm bits. (bool) Or you can create a word in the plc datablock (link this word with your hmi alarm word)and dissasemble it with the at keyword to address the bits within your word. Try either of these and let us know how it went. EDIT: added screenshot to backup my written explanation Kind regards, Jens Attachment alarmaddressingexample.jpg (3087 Downloads)
	Last edited by: Jens_app at: 6/19/2014 3:08 PM added screenshot (EDIT) Keep it simple and on-topic. A simple straight-to-the-point answer is often of more quality than a complicated one.
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6/19/2014 3:25 PM	Rate (1)
MS1981 Silver Member Joined: 4/14/2010 Last visit: 11/11/2024 Posts: 525 Rating: (11)	Dear AZRAIQI, Please follow three steps . Step 1 Creat Alarm Group_1 with data type "Struct" in DB. Click on Alarm Group arrow the type in new row like alarm1 select data type "Bool" Step 2 Open HMI tag add new type name Alarm Group_1 select data type "INT" Click on PLC tag and select Alarm Group_1 from DB select data type "INT" Step 3 Add new Alarm text and click on trigger tag then select Alarm Group_1 you will see address DB1.DBX1.0 now you can use DB1.DX0.0 to DBX1.7 click on trigger bit and select your desire bit address of Data Block. Attachment Desktop.zip (1090 Downloads)
	MS
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6/19/2014 3:27 PM	Rate (0)
William_B Posts: 5225 Rating: (1198)	Jens_app Dear Mr. AZRAIQI, You can use absolute addressing in your hmi to solve this: Create an hmi tag and link it to your DB by inserting absolute address %DB3.DBW0 (for example, insert the first address where your alarmbits start) Make sure the wordin your datablock contains the alarm bits. (bool) Or you can create a word in the plc datablock (link this word with your hmi alarm word)and dissasemble it with the at keyword to address the bits within your word. Try either of these and let us know how it went. EDIT: added screenshot to backup my written explanation Kind regards, Jens Jens, thank you - you are right with the solution. Added is a JPG for showing the absoute access.. before I saw you add your version. Carefull though.. For this application it will work as is. Know however that if the DB is set to "Optimised" and there is a mix of variables, the position of the DB word will not be predictable. I recommend to set the DB to S7-300 / S7-400 block access method. then it is also possible to read the "offset" (address position) in the DB declaration. w LATE NOTE: Sarfraz Bhatti shows 3 JPGs that combines all the points to look for. Our thanks to him. Attachment Visual clue_absolute access to DB for alarms.jpg (1537 Downloads)
William_B Posts: 5225 Rating: (1198)	Last edited by: William B. at: 6/19/2014 3:37 PM Mention "Sarfraz Bhatti" contribution
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6/19/2014 3:32 PM	Rate (0)
Jens_app Gold Member Joined: 1/5/2011 Last visit: 11/29/2024 Posts: 815 Rating: (123)	William B. I recommend to set the DB to S7-300 / S7-400 block access method. then it is also possible to read the "offset" (address position) in the DB declaration. Thank you William for mentioning that, it is certainly something that must not be overlooked. Gr, Jens
	Keep it simple and on-topic. A simple straight-to-the-point answer is often of more quality than a complicated one.
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6/19/2014 3:35 PM	Rate (1)
William_B Posts: 5225 Rating: (1198)	The before mentioned method (Jens_app and Sarfraz Bhatti) is by far the best option. I know it is purely academical now.. but the AT declaration is still a possibility. Included is an abstract from the TIA V11 manual describing the AT declaration. The downfall for this method is that it needs to be created within an FB; it can not be created within a stand-alone DB. The good thing about the method is that the access is symbolic and thus more adaptable to changes within the DB structure. w Attachment Extract_Overlaying tags with AT.pdf (1214 Downloads)
William_B Posts: 5225 Rating: (1198)
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