Add On Instructions Programming | AOI RSLogix / Studio 5000 PLC Programming Tutorial Example Logic

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5 жыл бұрын

Add On Instructions Programming | AOI in RSLogix / Studio 5000 Programming Tutorial Example Logic
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Add-On Instructions play a critical role in PLC programming. They give a programmer the ability to define custom instructions in order to maximize code reusability and simplify development. An Add-On Instruction or AOI is basically a function which is defined by the programmer and works in the same manner as the one provided by Rockwell.
Building AOIs is not complicated but does require a good understanding of PLC programming. Based on my experience, it’s also important to have been exposed to structured code in order to properly implement AOIs.
Many third-party vendors and OEMs release custom AOIs for their equipment. An example which comes to mind is that Cognex In-Sight 7200 Camera AOI. This instruction allows the user to easily interface with the camera supplied by Cognex. This practice is common & provides integrators with a simple way to interface with a certain device without having to work with registers directly.
When to use Add-On Instructions [AOIs]
Just like with User-Defined Data Types (UDTs), there’s a reason for using an AOI implementation. Based on what we’ve seen in the field, there could be several good circumstances in which an AOI would be justified:
You’re an OEM or Systems Integrator working with a new product and want to create an instruction which would interface said hardware. The AOI would provide an API (Application Program Interface) for the users looking to work with your system.
You’re a PLC Programmer who’s using the same exact rungs of code repeatedly. The goal of the AOI here would be to simplify your code into fewer rungs and to make it easier to program.
The biggest mistake I see programmers make is converting all their code into an AOI, nesting multiple AOIs and utilizing AOIs for basic logic. As you gain experience as a PLC programmer, you’ll recognize cases which could benefit from an AOI and others which won’t.
Building an Add-On Instruction in RSLogix / Studio 5000
Getting started with AOIs is fairly straightforward. However, you do need to work in an Offline program in order to create or modify them. This is one of the major drawbacks of AOIs. However, if planned accordingly, this isn’t a problem, but rather a deterrent for anyone to modify your code on a live PLC.
To create a New AOI, right click on the “Add-On Instructions” Folder in the Controller Organizer and select “New Add-On Instruction”. If this option isn’t available, make sure that you are offline; as mentioned above, you won’t be able to perform this action online.
Full Tutorial: solisplc.com/add-on-instructi...
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Пікірлер: 33

@edo6053 2 жыл бұрын

Thanks SolisPLC!

@josephtomlin9005 5 жыл бұрын

Good video although it’s not necessary to create tags to fill your variables as the tags are created when you make the tag for the aoi. In your example you named your aoi tag AOI_basic1. So the included tags are .operand_1, operand_2, etc. Just some FYI I’ve learned using AOI’s. So creative naming and arraying your tags in the editor makes hmi and program replication super easy. Thanks and keep up the good work!

@kB-hg2ci 2 жыл бұрын

I hate everything RSLogix but you make it somewhat tolerable with your excellent tutorials. Thank you.

@adisharr 2 жыл бұрын

Excellent tutorial! I'm tasked with developing an AOI set for a Trio Motion controller and this will be a big help. Thanks for putting these together! :)

@alonsohdzf 3 жыл бұрын

Great content and explanation, thanks!

@ZanZendegiAzadi_Iran Жыл бұрын

Excellent tutorial! Thank you.

@fordmodela3641 Жыл бұрын

Very well taught

@fecodat 2 жыл бұрын

Thank you soo much! Clear explanation, easy to understand. 1000 Like! :)

@hmouday9446 Жыл бұрын

Super helpful

@mohamedsalama8369 5 жыл бұрын

Thank you for you efforts keep going 👍👍

@SolisPLC 5 жыл бұрын

Thank you sir.

@MrPromerican 3 жыл бұрын

I subbed...thanks

@Affounandjo 7 ай бұрын

Thanks

@fingerlakes 3 жыл бұрын

Link to the "next" video, a more advanced application of an AOI?

@davidshaver3732 3 жыл бұрын

Great video; thank you. I noticed at the beginning that ‘new AOI’ was greyed out while online, but ‘import’ was not. Is it possible to create an AOI in another project, export it, and then import it and use it in the program without stopping the program? Or is there some other workaround? (I’m new to AB plcs and was surprised at not being able to create an AOI while running. As Daniele noted, other platforms do allow online AOI creation and editing, though sometimes with restrictions.) David S

@Guchutt 4 жыл бұрын

Great video. Thank you. By the way is there a video of the advanced application of AOIs mentioned at the end of this video? Thanks in advance.

@conrad1205 4 жыл бұрын

Can you make a UDT for this AOI Are there online libraries for AOIs

@rafm101993 Жыл бұрын

How to change Timer (TON in AOI) preset value from outside the AOI? I am moving the preset value by taking a value from outside the AOI but the timer stays at 0. Kindly please help me out.

@smallgoon Жыл бұрын

Same

@joseverasveras6455 3 жыл бұрын

boa noite,gostaria de uma explicação sobre texto estruturado da rockwell

@school77231 3 жыл бұрын

Thanks for sharing, I could not find AOI instruction in my studio 5000 under motion groups, Can you please guide me how to find AOI

@manojnathani6348 2 жыл бұрын

Can I use same AOI in multiple places with different external tags?

@PabloRichtchik 10 ай бұрын

Good afternoon, is there any way to remove signature from blocked blocks?

@Futbolnews12 2 жыл бұрын

Hi Vlad, at the end of this video you said that in the next video we will be looking into more practical and advanced application? Where is that video? Thank you!!

@SolisPLC 2 жыл бұрын

Hey, sorry about that... I had planned to release a few videos on the topic, but never did...

@joec2308 3 жыл бұрын

Hi, My friend I want to know the Mul1, Mul2, Add1, Add2 is temporary variables, I didn't see you set it up in the table, they are just work in one cycle in the system?

@SolisPLC 3 жыл бұрын

That's correct, they are calculated within a single execution of the AOI only. All the variables in the table can be set to be accessed from the outside of the AOI; there is no reason to give external users access to the Mul1, Mul2, Add1 and Add2. You can also password protect the AOI and no one would know about the internal variables you're using.

@joec2308 3 жыл бұрын

@@SolisPLC thank you for your quick and clear response.

@joec2308 3 жыл бұрын

@@SolisPLC you mean you already set up the mul1, mul2,add1,add2 before?

@mrtrader4628 2 жыл бұрын

Okay it didn't work for me I get a unknown Instruction using 5000 v20 and I didn't see the apply button also. Please help. Darren

@danielecremonesi4254 4 жыл бұрын

Every single chanche of the AOI (even a comment) you have to download all Program and put the CPU in stop Mode. This is Horrible compare to any other brand PLC. I don't understand why Rockwell is not improving this Online Change even in the AOI.

@SolisPLC 4 жыл бұрын

To be honest with you, I'm not overly familiar with other PLC brands, so I didn't know they handled AOIs differently. That being said, I always advocate for avoiding AOIs unless they're absolutely necessary for the reason you've mentioned.