# Modbus TCP job change on Cognex Camera

**URL:** <https://forum.universal-robots.com/t/modbus-tcp-job-change-on-cognex-camera/27865>\
**Category:** Robot Communication\
**Created:** [April 10, 2023, 12:51pm UTC](https://forum.universal-robots.com/t/modbus-tcp-job-change-on-cognex-camera/27865 "2023-04-10T12:51:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![anon41231788](https://avatars.discourse-cdn.com/v4/letter/a/ed655f/32.png) [@anon41231788](https://forum.universal-robots.com/u/anon41231788)\
**Post date:** [April 10, 2023, 12:51pm UTC](https://forum.universal-robots.com/t/modbus-tcp-job-change-on-cognex-camera/27865/1 "2023-04-10T12:51:23Z")

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I’m trying to use my UR3E robot to change jobs on my Cognex camera but I’m having issues sending the register to the Cognex. I’m able to trigger the camera, get my vision guidance results and get back the job number the camera currently is running but I’m not able to send a job number to the camera. I’m not sure if I’m registering it wrong or if I need to turn on other inputs in a certain order. Has anyone run into this and found a way to do it?

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**Author:** ![anon89905958](https://avatars.discourse-cdn.com/v4/letter/a/ac8455/32.png) [@anon89905958](https://forum.universal-robots.com/u/anon89905958)\
**Post date:** [August 3, 2023, 5:17pm UTC](https://forum.universal-robots.com/t/modbus-tcp-job-change-on-cognex-camera/27865/2 "2023-08-03T17:17:49Z")

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I am having the same problem. What I have been told is that the Hex Code for the Registers dont match between UR and Cognex

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**Author:** ![anon41231788](https://avatars.discourse-cdn.com/v4/letter/a/ed655f/32.png) [@anon41231788](https://forum.universal-robots.com/u/anon41231788)\
**Post date:** [August 3, 2023, 5:54pm UTC](https://forum.universal-robots.com/t/modbus-tcp-job-change-on-cognex-camera/27865/3 "2023-08-03T17:54:00Z")

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That’s what we also came up with.