[In 11.4.0] Telnet control of Sanyo projectors

[Mike Daniell]

SCS 11.4.0 will contain additional facilities to handle Telnet control of Sanyo projectors. Here's an extract from the Help file for SCS 11.4.0:

Several Sanyo Projectors support Telnet Control for features such as opening and closing the shutter, although in the Sanyo Telnet documentation these commands are actually defined as Video Mute Off (message C0E) and Video Mute On (message C0D). However, to control a Sanyo Projector by Telnet, a valid password must first be supplied in response to the message PASSWORD: which is sent by the projector when an application such as SCS establishes a Telnet connection. If the supplied password is correct (it may be blank) then the Sanyo Projector returns the message Hello. Only then will the projector accept commands such as C0E. If the supplied password is not correct then the projector immediately closes the Telnet connection.

If that weren't enough to contend with, the Telnet connection is timed out by the projector after 30 seconds of inactivity, ie if no Telnet command is received for 30 seconds then the projector closes the Telnet connection. SCS receives notification of the closing of the connection, so marks the connection internally as 'closed'. If SCS subsequently tries to send a Control Message to the projector, then because the connection is now closed SCS will re-establish the connection and wait for the 'Hello' message that indicates 'Device now ready to receive commands' and will then send that Control Send message. Tests have shown this operation to be very fast, so the projector should respond to Control Send commands 'immediately', whether or not the Telnet connection was open at the time.

If you need this feature prior to the release of 11.4.0 then please email me. Note that you need an SCS Professional Plus or higher license to use Telnet Control Send cues.

Thank you, Mikk Mengel and Brian O'Connor, for your assistance in supplying information and testing the new feature.

[djvomght]

Hallo Mike,

after a short look into the manual of our Eiki LC-XB 43 (http://www.audiogeneral.com/eiki/lcxb43_network.pdf) projector I found, that this projector seems to use a similar login. I would like to test this, if possible.

Regards Jörg

[Mike Daniell]

after a short look into the manual of our Eiki LC-XB 43 (http://www.audiogeneral.com/eiki/lcxb43_network.pdf) projector I found, that this projector seems to use a similar login. I would like to test this, if possible.

That's interesting! The protocol seems to be the same as the Sanyo, including using "PASSWORD:" and "Hello" messages, and the same network port number (10000). Also, the command list is a subset of the commands available with the Sanyo. I note that the Eiki doesn't support C0D (video mute on) or C0E (video mute off).

I've emailed you details of this pre-release of 11.4.0.

[enigmatheatre]

Hi Mike.

FYI this protocol is used on a couple of projectors I use. They are Christie projectors so I will try it with them to when 11.4 is out.

Here is the docs on it.
http://www.christiedigital.co.uk/Suppor ... ration.pdf

I also use serial to talk to lots of devices and I know I have mentioned it before but now you are using a database to store info is there any chance ao looking at a library for protocols so people can share them on the board and with you to add them to SCS. It also would be a lot easier to build a show if there was a list of commands to choose from instead of having to open an old show and copy over the data.

Thanks,

Greig.

[Mike Daniell]

On further investigation it appears that a number of projectors use PJ-Net software to provide Telnet control.

Something like a 'Control Send Command Library' is feasible but it's not a simple enhancement, especially if we want to include facilities to import and export groups of commands.

[enigmatheatre]

Something like a 'Control Send Command Library' is feasible but it's not a simple enhancement, especially if we want to include facilities to import and export groups of commands.

I did not say it would be easy I just think it would be a great enhancement to SCS. Even if they were build in and could not be imported and exported.

Thanks,

Greig.

[tocsin]

Hi all,

we do have several Christie projektors (LWU505/LX505/LX700/LX1500) in use and it would be interesting if we are able to switch the video inputs or activate the build in shutter via telnet. I would upgrade SCS to the max if this is possible

greetings
tocsin

[Mike Daniell]

The new feature in SCS to provide Telnet control of PJ-Net controlled projectors (which include Christie projectors) has been tested successfully by a few SCS users, so I'm confident in the stability of this feature.

The commands available depend on the projector itself. During the development of this feature I downloaded several projector manuals, including the 'Network Setup and Operation' user manual for the Christie LX505/LX605. These projectors supports the following Telnet commands:

Code: Select all

C00 Power on
C02 Power off
C09 Volume up
C0A Volume down
C0B Audio Mute on
C0C Audio Mute off
C1C Menu display on
C1D menu display off

Note that this does not include the shutter control commands (C0D 'Video mute on' and C0E 'Video mute off'), although the Sanyo projectors do support this. Any available command can be issued by SCS 11.4.0 using Control Send cues.