# Some problems about Primary Client interface

**URL:** <https://forum.universal-robots.com/t/some-problems-about-primary-client-interface/4191>\
**Category:** Robot Communication\
**Created:** [April 29, 2019, 8:04am UTC](https://forum.universal-robots.com/t/some-problems-about-primary-client-interface/4191 "2019-04-29T08:04:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![anon70167123](https://avatars.discourse-cdn.com/v4/letter/a/91b2a8/32.png) [@anon70167123](https://forum.universal-robots.com/u/anon70167123)\
**Post date:** [April 29, 2019, 8:04am UTC](https://forum.universal-robots.com/t/some-problems-about-primary-client-interface/4191/1 "2019-04-29T08:04:20Z")

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Dear Experts,

Recently I tried to obtain the messages **GlobalVariablesSetupMessage** and **GlobalVariablesUpdateMessage** from Primary Client interface，but i can only obtain part variable from the **valueType** in **GlobalVariablesUpdateMessage** package，i want to know **valueType**'s structure in the packeage and How is it sorted?(for instance **LIST\_VAL = 5** )

( **valueType** in this picture，the black one is that I have already obtained，the red is that i can’t get the correct value)

 ![image](https://us1.discourse-cdn.com/flex020/uploads/universal_robots/original/2X/f/f87a2049e837dcc0f8354317ebd948c1ce2c5f24.png)