rs232 'get lighting state' command?

Using the nifty program "cbus 2 rs232.exe" you can send direct serial commands via a PCI/CNI from remotes/control4/other av control systems.

What I want to know is what are the direct serial commands for querying a certain group adresss' lighting state? Using c-gate its easy, however I'm programming up some equipement that only has imbedded code and obviously can't use java to run a copy of cgate. It would be much easier just to poll every 30 seconds or so and decypher the return string.

Presumably there is a serial command that can be sent directly via the PCI which will then return string(s) you can use to work out a group address' current level without ever touching cgate.

I can't work it out even using a sniffer, I figured during an auto-synch I could find my answer, any ideas?

 

Ashleigh's right. Polling's not the answer.

You should be setting up the PC Interface / CNI to monitor the application(s) of interest.

Your embedded code then only has to respond to the short messages resulting from C-Bus traffic. Your code should then maintain a variable to represent the level of any groups you are interested in.

This not only reduces network traffic, but simplifies your embedded code.