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Dolby CP-850


 

Hello All,

Does anyone have information on how to control a Dolby CP-850?? I'm looking for RS232 or Ethernet commands.? Any help you can provide would be greatly appreciated.

Thanks,

Chris Cates, CSP
Creative Programming Inc.



 

There is a Crestron module for the CP-650, is it not the same protocol as that device?


 

Hey Mussetter,
Where is CP-650 module? ?I have an upcoming job where we are going to control a Dolby CP-650, switch inputs and control volume.
Thanks,
J


 

The CP-650 module posted on Crestron's application market is dated 2006. I've downloaded it, but don't know if it will work with the new CP-850 being installed. Control info on this is extremely difficult to find.?


 

This model is NOT created equal to the CP-650, CP-750. I only has basic commands. In a nutshell you can only call macros, volume, and mute. The volume and mute is the main output (same as controls on front of unit).

The protocol is in the manual in appendix B.

I have controlled it IP using port 61408 (plain ascii)
serial is 9600 (straight)

There are 2 ways to call macros by number or by name. By number limits you to 1-8 referring to the 8 buttons on the front of the unit (assignable) and by name is how the macro is named in the unit.

Here is the syntax for number:
execute macro 1 = sys.macro_preset 1\n
query last macro run =?sys.macro_preset ?\n (hacked this, not identified in api)
? ? ? response ?example =?sys.macro_preset 1
?
name is = sys.macro_name [string]\n

fader ?= sys.fader [0-100]\n
mute = sys.mute [0-1]\n

Hope this helps

Chris B.


 

Make sure you do not try to control it over rs232. It will crash the cp850 within a few days (requiring a reboot).

You need to use IP control.

Contact Dolby they have a module to share that is a great start. We based our control off what they shared and rolled in a bunch of changes. But the one they gave us gets you started for sure.

FYI IP control is very reliable. Have one running in a home theater for a year with no crashes (knocks on nearest wood)


Jon

Sent from my pocket computer


 

Hey Jon,

Bringing this one back from the dead.? Do you have a contact at Dolby you could share that has access to this IP control module?

JD Youngberg