# Unexpected behavior of Start-Program input in PolyScope 3.7 **URL:** \ **Category:** URScript\ **Created:** [September 19, 2018, 1:38pm UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767 "2018-09-19T13:38:33Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![anon47499781](https://avatars.discourse-cdn.com/v4/letter/a/ed8c4c/32.png) [@anon47499781](https://forum.universal-robots.com/u/anon47499781)\ **Post date:** [September 19, 2018, 1:38pm UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/1 "2018-09-19T13:38:33Z")
HI all I just update the Software version 3.7 in CB series recently. I set digital input as follows and control by button switch (1:Pause-program, 2: Start-program) But the program have not response when digital input 2 is work. I sure digital input 2 is lighting on teach pendant I/O page. Anyone has same problem? or this is bug in version 3.7 ?? ![image](https://us1.discourse-cdn.com/flex020/uploads/universal_robots/original/1X/baf0894892afc5061595c4d52f8d93c385a1b912.jpeg) ---
**Author:** ![anon56349523](https://avatars.discourse-cdn.com/v4/letter/a/cdc98d/32.png) [@anon56349523](https://forum.universal-robots.com/u/anon56349523)\ **Post date:** [October 1, 2018, 7:19am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/2 "2018-10-01T07:19:17Z")
Hi, I have the same problem with 5.1 in E-series. I hope they will fix this bug ---
**Author:** ![jbm](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/jbm/32/614_2.png) [@jbm](https://forum.universal-robots.com/u/jbm)\ **Post date:** [October 1, 2018, 7:51am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/3 "2018-10-01T07:51:46Z")
Could you both elaborate what steps you are taking, and what you expect, vs. what is actually happening? ---
**Author:** ![anon56349523](https://avatars.discourse-cdn.com/v4/letter/a/cdc98d/32.png) [@anon56349523](https://forum.universal-robots.com/u/anon56349523)\ **Post date:** [October 3, 2018, 5:57am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/4 "2018-10-03T05:57:26Z")
For example : when I bind the input 0 the fonction “start program”, I expect the robot to start the program when I press the button wired on the same input. What is happening is that the program won’t start. Same problem with the “stop program”, if the program is started with the play button, it won’t stop the program ---
**Author:** ![anon82484413](https://avatars.discourse-cdn.com/v4/letter/a/d2c977/32.png) [@anon82484413](https://forum.universal-robots.com/u/anon82484413)\ **Post date:** [October 3, 2018, 11:41am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/5 "2018-10-03T11:41:20Z")
I just tested it in a virtual machine, with the robot set to simulation. With a program running, enabling the inputs does nothing, the program just continues to run. The “Start program” option, isn’t starting the program either. ![Udklip](https://us1.discourse-cdn.com/flex020/uploads/universal_robots/original/1X/6f7b4195b74abd73d74f76a726394cf8a58835fa.png) Seems to be an old bug, on 3.5.0.1.10584 it isn’t working either. ---
**Author:** ![anon12495347](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@anon12495347](https://forum.universal-robots.com/u/anon12495347)\ **Post date:** [October 23, 2018, 3:36pm UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/6 "2018-10-23T15:36:34Z")
Hi, is this problem solved in the mean time, having this problem also in 3.7 version. Signal is shown ‘high’ but action ‘Start program’ is not executed ---
**Author:** ![jbm](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/jbm/32/614_2.png) [@jbm](https://forum.universal-robots.com/u/jbm)\ **Post date:** [October 24, 2018, 10:46am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/7 "2018-10-24T10:46:59Z")
Hmm, you cannot set the inputs of the simulator. And this feature does not apply in Simulation mode. This feature should be used in the physical robot. ---
**Author:** ![anon12495347](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@anon12495347](https://forum.universal-robots.com/u/anon12495347)\ **Post date:** [October 24, 2018, 12:24pm UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/8 "2018-10-24T12:24:06Z")
But, I used it on the physical robot with the same problem … ---
**Author:** ![jbm](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/jbm/32/614_2.png) [@jbm](https://forum.universal-robots.com/u/jbm)\ **Post date:** [October 24, 2018, 12:26pm UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/9 "2018-10-24T12:26:26Z")
Is the robot in a state, where it can start the program directly? I.e. that the robot is at the first position in the program (hence not requiring “auto move”), or where the first waypoint is variable or relative. ---
**Author:** ![anon12495347](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@anon12495347](https://forum.universal-robots.com/u/anon12495347)\ **Post date:** [October 24, 2018, 12:59pm UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/10 "2018-10-24T12:59:05Z")
I expected that it works like the play button on the polyscope. So, will start if not running and will ‘continue’ if ‘in pause’. In both states it does not react on the signal made ‘high’. In the UI it is shown that it is high however. ---
**Author:** ![anon12495347](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@anon12495347](https://forum.universal-robots.com/u/anon12495347)\ **Post date:** [October 26, 2018, 5:43am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/11 "2018-10-26T05:43:41Z")
Robot was at correct position. So, while robot is running, first I send a ‘Pause program’ signal, and then a ‘Start Program’ whereas the robot position is not changed in between. ---
**Author:** ![anon12495347](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@anon12495347](https://forum.universal-robots.com/u/anon12495347)\ **Post date:** [October 26, 2018, 7:54am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/12 "2018-10-26T07:54:54Z")
Found more details. Initial it works correct as expected. But if you once push the ‘stop’ button, and then activate the ‘start-program’ via an input signal, it gives the java error as below and after that the start-program via input signal will not work anymore until you restart the robot. ![20181026_094331](https://us1.discourse-cdn.com/flex020/uploads/universal_robots/original/1X/73a32d78ebbb92eb39d45b3fd5a062f673f55d5f.jpeg) ---
**Author:** ![mmi](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/mmi/32/691_2.png) [@mmi](https://forum.universal-robots.com/u/mmi)\ **Post date:** [November 23, 2018, 8:54am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/13 "2018-11-23T08:54:08Z")
Thank you for reporting Bug will be fixed in 3.8/5.2. ---
**Author:** ![anon12495347](https://avatars.discourse-cdn.com/v4/letter/a/779978/32.png) [@anon12495347](https://forum.universal-robots.com/u/anon12495347)\ **Post date:** [November 23, 2018, 8:56am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/14 "2018-11-23T08:56:40Z")
OK, thanks. Planning availability ? ---
**Author:** ![jbm](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/jbm/32/614_2.png) [@jbm](https://forum.universal-robots.com/u/jbm)\ **Post date:** [November 23, 2018, 9:32am UTC](https://forum.universal-robots.com/t/unexpected-behavior-of-start-program-input-in-polyscope-3-7/2767/15 "2018-11-23T09:32:45Z")
PolyScope 3.8/5.2 is planned for release in December.