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Author Topic: Inputs failed  (Read 18771 times)

DLTimmons

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Inputs failed
« on: May 08, 2014, 09:28:59 AM »
Had one I never seen before I could not see any inputs started with 32 bit input then then tried an another 32 bit card same thing then a sixteen bit that has led the leds would not light up. tried a new rack still the same thing. I then swap the Do-More out and all started working. Do I have a failure or is there some setting causing this.
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BobO

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Re: Inputs failed
« Reply #1 on: May 08, 2014, 09:57:08 AM »
Possible failure. Is the CPU new and has it ever worked before? Just speculation, but it sounds like the base reset line may be permanently asserted.
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DLTimmons

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Re: Inputs failed
« Reply #2 on: May 08, 2014, 11:55:19 AM »
Never been power up but we have it a few months the project was put on hold till now
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BobO

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Re: Inputs failed
« Reply #3 on: May 09, 2014, 02:03:39 PM »
Quote from: DLTimmons on May 08, 2014, 11:55:19 AM
Never been power up but we have it a few months the project was put on hold till now

Email us at support@hosteng.com and we'll arrange an RMA. We'll do a failure analysis and get you a working unit. Please mention this post so they'll know what it's about.
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"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO

Greg

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Re: Inputs failed
« Reply #4 on: May 09, 2014, 04:01:31 PM »
DLTimmons,

One is on the way. I sent you an email with details.
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DLTimmons

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Re: Inputs failed
« Reply #5 on: May 09, 2014, 05:45:00 PM »
Thanks
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Greg

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Re: Inputs failed
« Reply #6 on: May 14, 2014, 12:16:03 PM »
DLTimmons, received your H2-DM1E and duplicated the failure mode you indicated. It could not read my 32-point input module's status. It could read the 8-point module's status just fine. I took it to the design engineer's lab and he is currently investigating. He believes it will be a simple explanation like a bad solder joint or something. I'll post what he finds.
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There are two types of people in the world; those that can extrapolate from incomplete data sets.

DLTimmons

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Re: Inputs failed
« Reply #7 on: May 14, 2014, 02:39:58 PM »
I did not try a 8 point input. It did not work with a 16 or 32 point input would not even light the LED's on a 16 point input
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Greg

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Re: Inputs failed
« Reply #8 on: May 14, 2014, 03:48:26 PM »
The problem was a bad U20. Technically pins 6 and 7 were generating a 2MHz pulse on the BIRZ line (reset line). This was essentially resetting the modules across the backplane. Most likely the reason the 32-bit or 16-bit input modules weren't working is they are a bit slower responding from being reset and were basically staying reset. The 8-bit module I had was probably fast enough to get some data in.

We replaced U20 and all is well.
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There are two types of people in the world; those that can extrapolate from incomplete data sets.

BobO

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Re: Inputs failed
« Reply #9 on: May 14, 2014, 04:22:43 PM »
Quote from: BobO on May 08, 2014, 09:57:08 AM
Just speculation, but it sounds like the base reset line may be permanently asserted.

Quote from: Greg on May 14, 2014, 03:48:26 PM
The problem was a bad U20. Technically pins 6 and 7 were generating a 2MHz pulse on the BIRZ line (reset line). This was essentially resetting the modules across the backplane.

 ;) :just sprained arm patting own back:
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"It has recently come to our attention that users spend 95% of their time using 5% of the available features. That might be relevant." -BobO

DLTimmons

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Re: Inputs failed
« Reply #10 on: May 15, 2014, 01:35:56 PM »
I'm glad it was not me doing something wrong ;D
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