# Having issues with MC\_BR\_ModuloMoveAbs\_AcpTrak block

**URL:** <https://community.br-automation.com/t/having-issues-with-mc-br-modulomoveabs-acptrak-block/9599>\
**Category:** Mechatronics & Motion\
**Tags:** acopos-trak\
**Created:** [January 7, 2026, 2:01am UTC](https://community.br-automation.com/t/having-issues-with-mc-br-modulomoveabs-acptrak-block/9599 "2026-01-07T02:01:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Nandhagopal\_Suresh](https://avatars.discourse-cdn.com/v4/letter/n/FF8800/32.png) [@Nandhagopal\_Suresh](https://community.br-automation.com/u/Nandhagopal_Suresh)\
**Post date:** [January 7, 2026, 2:01am UTC](https://community.br-automation.com/t/having-issues-with-mc-br-modulomoveabs-acptrak-block/9599/1 "2026-01-07T02:01:11Z")

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I have a acopos trak with 48 shuttles in it.

I trigger the execute command for the MC\_BR\_ModuloMoveAbs\_AcpTrak when there is change in target position / acceleration - deceleration / in position tolerance.

I have a array of MC\_BR\_ModuloMoveAbs\_AcpTrak with total number of shuttles as array size. so i cycle through the array to give the execute command to each shuttle.

So imagine if I assign a shuttle(say H) to position B from position A. It has left A but has not reached B because there are other shuttles in position. When the shuttles obstructing shuttles move to their new target Shuttle H won’t move.

Currently i don’t have snapshot of the logger. Will update it soon on this thread.

Any help is much appreciated

the shuttle

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**Author:** ![valerio.manenti](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/valerio.manenti/32/11712_2.png) [@valerio.manenti](https://community.br-automation.com/u/valerio.manenti)\
**Post date:** [January 7, 2026, 3:24am UTC](https://community.br-automation.com/t/having-issues-with-mc-br-modulomoveabs-acptrak-block/9599/2 "2026-01-07T03:24:36Z")

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Hi @Nandhagopal_Suresh ,  
check “Elastic“ input in the FUB

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/9/99b2f7e8f40e7427dba61010cdc89688d67c4878.png)

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/c/c38658ba5ceee2ac2c89cf0dee3305bcb4aa9d7c.png)

Ciao  
Valerio