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<div class="moz-cite-prefix">Thanks Charles,<br>
<br>
Yes, decoding the output is top of the list.<br>
<br>
If I hadn't asked, I know that someone would pop up in 3 months
time and say that they had full documentation etc (sods law etc.)<br>
<br>
Don't particularly want to redesign the hardware, but that is
always an option.<br>
<br>
-mark<br>
<br>
<br>
On 14/05/2017 1:52 PM, Charles Manning wrote:<br>
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<div>Mark<br>
<br>
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First you need to decode the serial. You might then find it is
some semi-standard protocol such as DMX (used for stage/studio
lighting control).<br>
<br>
</div>
If you're just after the mechanical stuff and don't need to keep
it pristine, you might consider fitting a new micro and writing
your own firmware.<br>
<br>
<div><br>
<br>
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<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, May 14, 2017 at 12:38 PM, Mark
Atherton <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:markaren1@xtra.co.nz" target="_blank">markaren1@xtra.co.nz</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello
everyone,<br>
<br>
Chocolate fish time...<br>
<br>
Just playing with a Fujinon CPT-1A-10DA pan and tilt head,
these units are used in the broadcast TV arena. It may use
the same protocol as the EPT-5E series.<br>
<br>
Very little documentation supplied with the product,
although appear to have confirmed that the unit is
controlled using RS232.<br>
<br>
The manual for a suitable PSU was supplied, so managed to
identify power and RS232 lines. Dismantled the unit to
confirm that RS232 feeds pin 13 of a MAX232 (R1IN).<br>
<br>
After moving the pan channel (by hand) with power removed,
the unit returns to previous position when 12V is applied;
am assuming that the unit works OK.<br>
<br>
This unit was originally configured by BCL (now Kordia ?).<br>
<br>
Managed to find a suitable controller (EOP-102J-30E) on eBay
for US$1100; would like to borrow it to do some comms
sniffing but that seems unlikely.<br>
<br>
Finally, spotted that the unit sends a short message from
it's RS232 port at power on. Looks like data cells are 200us
wide, so maybe a 4800baud comms channel. Need to explore
this more.<br>
<br>
Have found all manner of P&T protocols, some require an
address field (RS485, or RS232) so that adds a further level
of uncertainty/excitement to the proceedings.<br>
<br>
If anyone has experience with such devices, or know where
correct documentation might be acquired, I will be most
happy to hear from them.<br>
<br>
This is not a commercial project, and hair is being pulled
out by the clump ...<br>
<br>
Regards, Mark<br>
<br>
<br>
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