# profibus dp

**URL:** <https://tech-community.robotics.abb.com/t/profibus-dp/2488>\
**Category:** Robot Controller\
**Created:** [February 5, 2009, 9:10am UTC](https://tech-community.robotics.abb.com/t/profibus-dp/2488 "2009-02-05T09:10:36Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![carmila](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@carmila](https://tech-community.robotics.abb.com/u/carmila)\
**Post date:** [February 5, 2009, 9:10am UTC](https://tech-community.robotics.abb.com/t/profibus-dp/2488/1 "2009-02-05T09:10:36Z")

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hi…!

I have a new research project. I have to use profibus dp instead of commonly digital i/o to reduce the use of relay (because our PLC only can transfer NPN signal, and ABB only can transfer PNP signal, so we add some relays to convert the signal).

But, i don’t have any knowledge about profibus: how to use, how it can connect to ABB, and so on. A?I also learn to make a virtual system that use profibus, but when i came to control panel- configuration-unit, i found so many kinds of unit. I don’t know which one to use:frowning:.A?So, if you have some experience using it, please share with me.

So many thanks.

BR,

Carmila

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**Author:** ![Rookie](https://dub1.discourse-cdn.com/flex005/user_avatar/tech-community.robotics.abb.com/rookie/32/3238_2.png) [@Rookie](https://tech-community.robotics.abb.com/u/Rookie)\
**Post date:** [February 11, 2009, 7:49am UTC](https://tech-community.robotics.abb.com/t/profibus-dp/2488/2 "2009-02-11T07:49:10Z")

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Hi carmilla,

Normally for connecting to a plc you can use the profibus slave adapter DSQC667. This is a option. In the EIO you can configure this board, just like normal IO. You have to give the adapter a unique adress, the plc ( or whatever ) can find it then on the profibus. The profibus of ABB is quite simple to work with. If you go through the manuals of ABB at Fieldbus options, you find some more specific information.

Hope this helps.

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**Author:** ![Robot\_killer](https://avatars.discourse-cdn.com/v4/letter/r/f19dbf/32.png) [@Robot\_killer](https://tech-community.robotics.abb.com/u/Robot_killer)\
**Post date:** [February 11, 2009, 2:11pm UTC](https://tech-community.robotics.abb.com/t/profibus-dp/2488/3 "2009-02-11T14:11:05Z")

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Hi,

if you can use device net, it is the native communication with ABB  
I tried and it is working properly with PLC  
both the PLC setting, it is more hard to find.

In virtual, the IO is only simulated (to my knowledge)

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**Author:** ![carmila](https://avatars.discourse-cdn.com/v4/letter/c/4bbf92/32.png) [@carmila](https://tech-community.robotics.abb.com/u/carmila)\
**Post date:** [February 12, 2009, 9:25am UTC](https://tech-community.robotics.abb.com/t/profibus-dp/2488/4 "2009-02-12T09:25:15Z")

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hi,

Thank you for your replies, I will read the manuals. and learn more about it.A?

Thanks, friends!

BR,