Dynomotion

Group: DynoMotion Message: 8223 From: Toby Rule Date: 8/30/2013
Subject: timing of KAnalog Opto outputs (JP13)

Hi Tom,

 

What are the timing characteristics of the opto outputs on the KAnalog?  It seems that when I command the bit high, it doesn’t go high at that instant, but there is typically some delay.  It looks like they switch at discreet points in time, like a clock cycle.  I suppose this is related to the multiplexer speed.

 

So for high-speed timing with optical isolation,  I presume I need to connect one of the TTL outputs on the KFLOP to my own opto-isolator?

 

Thanks,

 

Toby

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Group: DynoMotion Message: 8229 From: TK Date: 8/31/2013
Subject: Re: timing of KAnalog Opto outputs (JP13)
Hi Toby,

That is correct. All the data (more than 200 bits) to/from Kanalog is only updated every 90us servo sample. 

Direct KFLOP IO can be changed in less than a microsecond. 

Regards
TK

On Aug 30, 2013, at 1:02 PM, Toby Rule <trule@...> wrote:

 

Hi Tom,

 

What are the timing characteristics of the opto outputs on the KAnalog?  It seems that when I command the bit high, it doesn’t go high at that instant, but there is typically some delay.  It looks like they switch at discreet points in time, like a clock cycle.  I suppose this is related to the multiplexer speed.

 

So for high-speed timing with optical isolation,  I presume I need to connect one of the TTL outputs on the KFLOP to my own opto-isolator?

 

Thanks,

 

Toby

The information contained in this transmission is intended only for the person or entity
to which it is addressed and may contain II-VI Proprietary and/or II-VI Business Sensitive
material. If you are not the intended recipient, please contact the sender immediately
and destroy the material in its entirety, whether electronic or hard copy. You are
notified that any review, retransmission, copying, disclosure, dissemination or other
use of, or taking of any action in reliance upon this information by persons or entities 
other than the intended recipient is prohibited.