# Modbus and ProfiNet at the same time possible? **URL:** \ **Category:** Technical Questions\ **Created:** [June 18, 2021, 4:15am UTC](https://forum.universal-robots.com/t/modbus-and-profinet-at-the-same-time-possible/14970 "2021-06-18T04:15:25Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![anon44450422](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@anon44450422](https://forum.universal-robots.com/u/anon44450422)\ **Post date:** [June 18, 2021, 4:15am UTC](https://forum.universal-robots.com/t/modbus-and-profinet-at-the-same-time-possible/14970/1 "2021-06-18T04:15:25Z")
Hello, We are planning a packing solution to put some bottles into a carton. Therefore, we want to install a Stepper or Servo Motor. To do that, we want to communicate with the controller with the ProfiNet Protocol. Just in case, that we need an extension of the E/A Board, which is done over the Modbus Protocol. Would that be possible? Or should we do the communication with the Stepper / Servo Controller also over the Modbus Protocol? Hope there is some help out there😊 ---
**Author:** ![sya](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/sya/32/216_2.png) [@sya](https://forum.universal-robots.com/u/sya)\ **Post date:** [June 18, 2021, 8:25am UTC](https://forum.universal-robots.com/t/modbus-and-profinet-at-the-same-time-possible/14970/2 "2021-06-18T08:25:05Z")
Hi @anon44450422 , This post gives you some info. > [@Start Profinet and Modbus on the same ethernet connection](https://forum.universal-robots.com/t/start-profinet-and-modbus-on-the-same-ethernet-connection/14754): > > Hi, I would like to know if it’s possible to to enable Profinet communication while a Modbus connection is already configure. More globally, if it’s possible to start multiple fielbus type connection. Thanks in advance, But please pay attention to a difference that UR robots only act as “server” in Profinet but could be “client” or “server” in Modbus TCP so please be sure that you want the robot to be a server or client. According to your description, I guess your robot should be a client to send requests to your stepper/ servo motor, right? If so, your robot cannot be a “client” when using Profinet protocol. Thanks ---
**Author:** ![anon44450422](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@anon44450422](https://forum.universal-robots.com/u/anon44450422)\ **Post date:** [June 18, 2021, 8:41am UTC](https://forum.universal-robots.com/t/modbus-and-profinet-at-the-same-time-possible/14970/3 "2021-06-18T08:41:34Z")
Hi @sya thanks for that fast responce. I think I will go for Modbus, so the comunication will be the same bus-system. Sorry that I did not use the ssearch function, I was looking for stepper control:-) ---
**Author:** ![ssandberg](https://avatars.discourse-cdn.com/v4/letter/s/c6cbf5/32.png) [@ssandberg](https://forum.universal-robots.com/u/ssandberg)\ **Post date:** [July 12, 2021, 3:49pm UTC](https://forum.universal-robots.com/t/modbus-and-profinet-at-the-same-time-possible/14970/4 "2021-07-12T15:49:16Z")
Before you setting on Modbus be aware that if you are using the UR client, there are some devices that it doesn’t seem to work with. I haven’t had any luck talking to a Cognex camera or Kollmorgen AKD drive over Modbus. ---
**Author:** ![anon6962979](https://avatars.discourse-cdn.com/v4/letter/a/ea5d25/32.png) [@anon6962979](https://forum.universal-robots.com/u/anon6962979)\ **Post date:** [March 29, 2022, 9:17pm UTC](https://forum.universal-robots.com/t/modbus-and-profinet-at-the-same-time-possible/14970/5 "2022-03-29T21:17:09Z")
Did you find a solution to comunicate the Robot via Modbus with the Cognex Camera? I want to do it with a 7000 model and an UR10e. Maybe you can give me a clue how it was for you? Thanks!! ---
**Author:** ![anon44450422](https://avatars.discourse-cdn.com/v4/letter/a/ea666f/32.png) [@anon44450422](https://forum.universal-robots.com/u/anon44450422)\ **Post date:** [March 30, 2022, 4:37am UTC](https://forum.universal-robots.com/t/modbus-and-profinet-at-the-same-time-possible/14970/6 "2022-03-30T04:37:08Z")
Hi Ivan, we tried to extend our UR10e with to E/A Cards from MOXA over the Modbus. For our project it was to slow since we need to count some bottles and we had to build in an External CPU from Siemens to get our project forward. We do not use a camera so fare. Frank ---
**Author:** ![anon6962979](https://avatars.discourse-cdn.com/v4/letter/a/ea5d25/32.png) [@anon6962979](https://forum.universal-robots.com/u/anon6962979)\ **Post date:** [August 29, 2022, 1:34pm UTC](https://forum.universal-robots.com/t/modbus-and-profinet-at-the-same-time-possible/14970/7 "2022-08-29T13:34:41Z")
thanks for your feedback. I ope the project was a big success