# Communication between two robots

**URL:** <https://forum.universal-robots.com/t/communication-between-two-robots/6995>\
**Category:** Robot Communication\
**Created:** [April 17, 2020, 12:51pm UTC](https://forum.universal-robots.com/t/communication-between-two-robots/6995 "2020-04-17T12:51:38Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![anon47761871](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@anon47761871](https://forum.universal-robots.com/u/anon47761871)\
**Post date:** [April 17, 2020, 12:51pm UTC](https://forum.universal-robots.com/t/communication-between-two-robots/6995/1 "2020-04-17T12:51:38Z")

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Hi community, I’m currently desingning a workcell with two robots. I need to do a very simple bool signals exchange between the two robots, I’ve read about GP I/O’s but i can’t get enough documentation and explanations.

Is there a way to exchange those signals between my two robots?

Thanks in advance.

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**Author:** ![anon25854915](https://avatars.discourse-cdn.com/v4/letter/a/8e8cbc/32.png) [@anon25854915](https://forum.universal-robots.com/u/anon25854915)\
**Post date:** [April 18, 2020, 6:53am UTC](https://forum.universal-robots.com/t/communication-between-two-robots/6995/2 "2020-04-18T06:53:24Z")

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Hi,

UR is Modbus/Tcp server natively. A lot of data are available see : [https://www.universal-robots.com/articles/ur-articles/modbus-server/](https://www.universal-robots.com/articles/ur-articles/modbus-server/)

And it’s also easy to add clients channels : [Universal Robots - Using the Modbus TCP/IP Client interface of the UR robot](https://www.universal-robots.com/articles/ur-articles/using-the-modbus-tcpip-client-interface-of-the-ur-robot/)

By this way data can be echanged automatically without one line of code.

Bye

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<div class="post-metadata">

**Author:** ![anon47761871](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@anon47761871](https://forum.universal-robots.com/u/anon47761871)\
**Post date:** [April 20, 2020, 12:00pm UTC](https://forum.universal-robots.com/t/communication-between-two-robots/6995/3 "2020-04-20T12:00:50Z")

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I’ll give it a try today. I’ve got confused with the General Purposes I/O’s and fieldbus.

Thanks again Frederic.