What are the Hard limits of system size

[Illusion]

The tendrils of this have been discussed in other topics, but I thought it would be nice to have all the hard limits in one place. Also I do not know what all these values are so chime in if you know something.

 

ISY Maximums:

 

Pro:

Max. Devices/Scenes 1024

Max. Programs 1000

 

Base:

Max. Devices/Scenes 256

Max. Programs 300

 

PLM Maximums:

 

V 63 and below 417 links maximum

above v 63 2000 links but the processor was only able to handle about 800 really reliably

Dual Band PLM 1023 links with a processor that can handle all that.

 

 

Questions:

The real limit on scenes is 255 right? So what does Max. Devices/Scenes mean?

Is the program limit a hard number, or is it an available memory issue? and therefore an estimate?

[Brian H]

The ISY Maximums you listed are for the Pro versions of the 99i and 994i

 

The Standard 99i and 994i maximums are 256 Devices/Scenes and 300 Programs.

[jdale]

In terms of links in the PLM database you need a link for each device to be controlled, and for each device to inform the PLM about its status. E.g. for a SwitchLinc you will typically need 2 links.

 

Additionally, if a device appears in multiple scenes, it will need a link for each scene.

 

So for a SwitchLinc that appears in 2 scenes, you actually need 3 links. One to tell the PLM if you press the paddle on the SwitchLinc, and two to control it.

 

So these add up faster than you might expect.

[sanders2222]

Is there a way to poll the ISY to find out how many devices and programs you have?

[Michel Kohanim]

Hi sanders2222,

 

There's no "summary" call that would provide you with that information. This said:

/rest/nodes gives you a list of devices and scenes in XML

/rest/programs gives you a list of programs in XML

 

With kind regards,

Michel