Re: [LCtalk] Syntax of LCE telnet commands?

[Fokko van Duin]

At 16:01 +1200 02-04-2005, Yetimon wrote:
> Hi there.  I've been playing around with an LCE, for the purpose of 
> controlling LED lighting via a Crestron home automation system.  
> Crestron will happily talk to the LCE over TCP/IP on port 777, I can 
> login and execute some commands, but many of my commands are failing 
> with a "?" response from the LCE, rather than a ">".   I can telnet 
> into the box and get the same results, so it's not a Crestron problem.

LanBox uses plain TCP, -not- telnet protocol. On Unix like systems 
use e.g. netcat (nc) , on Windows use e.g. Hyperterminal with TCP.


> I'm really flying blind with the syntax of the commands.  I've copied 
> a variety of commands from LCedit's StreamWatcher window, some of 
> which work, and some which don't.
>
> For example, I can send *565B000101# and the cuelist will run quite 
> happily.  I can run other cuelists such as *565B000201# without any 
> difficulties.
>
> However, if I try and manually change a colour on the fly, using a 
> command like *C95B0001A5# I get a ? response and the lights do not 
> change.
>
> Just to make things really confusing, a command such as 
> *C95B0001FF0004FF0007FF000AFF# will change the lights on channels 4 
> and A, but not 1 and 7!  The LCE kindly gives me a > response, even 
> tho it only executed half of the command!

This happen as a newly opened port to the box is set to 8 bit address 
mode. After connecting send a *65ff# to set it in 16 bit address 
mode. If you send this command 65 also every minute or so, it also 
prevents closing the TCP port after some time of inactivity.


> So, I guess my two main question are, is there any documentation 
> around on the syntax of these commands, and is there a bug in the 
> firmware which breaks telent'ed commands but works fine with LCedit?

All messages are described in the LC+ Reference v2.0a1.pdf  file 
(inside manuals folder).

Do not use the Telnet protocol, but plain TCP (nc in unix).


--
Fokko van Duin,                     Creators of the LanBox-LC
CDS advanced technology bv,         DMX lighting controller.
http://www.cds.nl/                  http://www.lanbox.com/

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