TAC50 - No Comm to IMS - Elevator Forum

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#36890 - 02/17/24 12:19 AM TAC50 - No Comm to IMS
Joined: Aug 2016 Posts: 15 GatorSK1N stranger
GatorSK1N stranger Joined: Aug 2016 Posts: 15	Hey guys, I’ve got a triplex TAC50 controller and one of the cars just randomly stopped working. Can’t even run on inspection. We have an IMS computer on site but it it stopped communicating at the same time as the shutdown. It will communicate with the other 2 cars no issue. CPU board light is on solid green DSP indication light also on solid green. No blinking. Any suggestions? Things to check? Last edited by GatorSK1N; 02/17/24 12:19 AM.

#36899 - 02/17/24 06:42 PM Re: TAC50 - No Comm to IMS [Re: GatorSK1N]
Joined: Aug 2016 Posts: 15 GatorSK1N stranger
GatorSK1N stranger Joined: Aug 2016 Posts: 15	Turned out to be the DSP board

#36900 - 02/17/24 06:42 PM Re: TAC50 - No Comm to IMS [Re: GatorSK1N]
Joined: Dec 2015 Posts: 1,537 Indirtwetrust ElevatorPractitioner
Indirtwetrust ElevatorPractitioner Joined: Dec 2015 Posts: 1,537 Local 18	You need to do the confidence test with Hyperterminal. It’s in the manual.

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