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How do we use UDT

Created by: Tranhieu0983 at: 3/16/2012 6:42 PM (3 Replies)

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3/16/2012 6:42 PM	Rate (1)
Tranhieu0983 Bronze Member Joined: 9/24/2010 Last visit: 4/21/2024 Posts: 118 Rating: (10)	Dear Expert and Friend. I'm using PLC and Step 7 near 2 year but i have a stupid question. What is UDT? What purpose we using? and how do we use UDT? Thank you so much.
	Last edited by: O_Moderator at: 3/19/2012 11:03 AM Mechatronic Center Website: www.plcvietnam.com.vn Email : tvhieu.plc@gmail.com
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3/16/2012 7:41 PM	Rate (3)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 10/26/2024 Posts: 6852 Rating: (1365)	Tranhieu0983 Dear Expert and Friend. I'm using PLC and Step 7 near 2 year but i have a stupid question. What is UTD? What purpose we using? and how do we use UTD? Thank you so much. I hope you mean "UDT" Please check "27.3.3.6 Using User-Defined Data Types to Access Data " of the following manual: SIMATIC Programming with STEP 7 V5.5 Advantages of DBs with an Assigned UDT By using UDTs you have created once, you can generate a large number of data blocks with the same data structure. You can then use these data blocks to enter different actual values for specific tasks. If, for example, you structure a UDT for a formula (for example, for blending colors), you can assign this UDT to several DBs each containing different amounts. Attachment UDT.pdf (2569 Downloads)
	Last edited by: hdhosseini at: 3/16/2012 7:46 PM //ATTACHMENT UPDATED Demo Channel on Youtube
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This contribution was helpful to 1 thankful Users RenFlower

11/21/2017 10:07 AM	Rate (0)
KARTHIK_FOX Posts: 5 Rating: (0)	Dear Friend UTD is a structure which we can use in any Data Block or any function block if your memory structure is same for all other blocks or data, when we write IN , OUT in function block , we can give there direct UDT name so that u dont need to write that address structure once again for all. If u read manual definitely you will get to know. If any more queries contact on --Deleted E-Mail--.
KARTHIK_FOX Posts: 5 Rating: (0)	Last edited by: Jen_Moderator at: 11/21/2017 2:51:24 PM Deleted E-Mail address, because it doesn't comply with the forum terms.
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This contribution was helpful to 2 thankful Users mopS04 AutoGen_8024441

11/21/2017 6:59 PM	Rate (0)
Rescobedo Silver Member Joined: 11/5/2012 Last visit: 11/5/2024 Posts: 487 Rating: (63)	Hello. You can imagine a UDT like a customizable complex data type, which structure is defined by you. You define what kind of data you will compose your "Complex Data". Once defined, you can use it just like the other data types, so it will keep the same structure. I hope this can help you.

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