# Safeguard Stop and RT Interface Programs

**URL:** <https://forum.universal-robots.com/t/safeguard-stop-and-rt-interface-programs/2979>\
**Category:** URScript\
**Tags:** safety-system\
**Created:** [October 23, 2018, 9:37pm UTC](https://forum.universal-robots.com/t/safeguard-stop-and-rt-interface-programs/2979 "2018-10-23T21:37:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![anon61863589](https://avatars.discourse-cdn.com/v4/letter/a/85f322/32.png) [@anon61863589](https://forum.universal-robots.com/u/anon61863589)\
**Post date:** [October 23, 2018, 9:37pm UTC](https://forum.universal-robots.com/t/safeguard-stop-and-rt-interface-programs/2979/1 "2018-10-23T21:37:10Z")

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I’m running a UR5 CB3 series robot on PolyScope 3.6.1.

I am running the robot by uploading a program over the RT interface. If a safeguard stop is encountered while this program is running, then the robot will not automatically resume execution. I also cannot resume execution using the dash board interface port, nor can I resume execution by manually taping the “Play” button on the UR Teach Pendant interface.

Oddly, if I create or load a simple program on the Teach Pendant first, execute it, and then stop its execution with the “Stop” button on the interface, the next time I upload my program over the RT interface protective stops work as expected.

Any explanation for why this might be the case? Any work arounds for this problem?

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<div class="post-metadata">

**Author:** ![anon61863589](https://avatars.discourse-cdn.com/v4/letter/a/85f322/32.png) [@anon61863589](https://forum.universal-robots.com/u/anon61863589)\
**Post date:** [October 24, 2018, 1:44pm UTC](https://forum.universal-robots.com/t/safeguard-stop-and-rt-interface-programs/2979/2 "2018-10-24T13:44:57Z")

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I’ve managed to find a work around, but I’d agrue this is a work around that should not need to be made.

To get safeguard stops to work correctly for a program loaded over the RT interface, I must first load a urp program on the pendant using the dashboard interface. After this program has been loaded, I can load the program over the RT interface and everything related to safeguard stops appears to work as expected.