I have the ISY and serial PLM setup and working currently.

 

I need to send some Insteon commands to an ApplianceLinc - but not thru ISY.

 

I was thinking of having an application running on a computer 24/7 which would be connected to a USB PLM and would send low level Insteon commands to an ApplianceLinc.

 

Would any issues arise with ISY with this kind of setup ?

Is the ApplianceLinc being managed by the ISY?

 

There would be no difference between an Insteon switch sending commands to the ApplianceLinc and another PLM doing the same thing. The conflict will be if the ApplianceLinc is managed by the ISY and being manipulated without the ISY knowledge.

Is the ApplianceLinc being managed by the ISY?

 

Currently the ApplianceLinc is managed in ISY but the goal is to have this one device completely independant of the ISY.

 

So if I understand correctly, having another PLM (in this case, the USB version) would not interfere with the ISY serial PLM as long as they don't interface with the same device ?

 

Also, if you know, is programming the USB PLM the same as programming the serial PLM ? I have found many documents/sample source code about the serial PLM but none about the USB PLM.

From a programming perspective all PLMs look the same as far as the serial command set. USB PLMs are Serial PLMs with a USB to Serial converter built in. USB PLMs have a Comm Port number just like a Serial PLM. There is no difference in the application code whether talking to a Serial PLM or a USB PLM. The various PLMs support different numbers of link records but that should not matter here as links would not be in play.

 

There is no issue with multiple PLMs on the powerline. I run with 4-6 external PLMs at any given time. Every wired Insteon device has a PLM internal to the device. There could be issues with the amount of Insteon traffic being generated. Insteon does allow multiple Scenes to run at the same time and Insteon traffic from other sources could have an adverse affect on what the ISY Programs are trying to accomplish. No difference then if someone is hitting the paddle on a SwitchLinc over and over.

 

The ISY will not be aware of changes in status of the ApplianceLinc by the PC app but that should not be an issue with the ApplianceLinc being removed from the ISY device list.

Ok - thanks for the explanation LeeG.

 

Just ordered the 2413U...