Hi. I have several ASC2s. 6 are dedicated to switches and another 2 are dedicated to accessory activation.
4 switch ASC2s and 1 accessory ASC2 are located next to each other under one island table of my layout. I'll call this Group A.
2 switch ASCs and 1 accessory ASC2 are located next to each other under a second island table. I'll call this Group B.
The switch and accessory ASC2s do not share any address ranges. Switch ASC2 address ids range from 1-24. Accessories are 30 and higher.
Here's the problem: with some regularity (but not all the time), when I trigger a switch aspect change in group A, a particular accessory on that table island will also trigger. Similarly, there's a specific accessory that gets triggered in island group B, but only when a switch aspect change occurs from any switch within that island's group.
Never does a switch activation from one island affect an accessory on another island, although it's all on the same PDI communications trunk.
Accessory activation normally happens via key X1 key, causing a temporary ground common connection to the activation "ini" terminal of a timer relay, which in turn activates the accessory for a defined period of time. (This is a common hookup I use for several of my ASC2 controlled accessories, yet only these 2 are mysteriously affected by switch changes).
Does anyone have ideas? I'm at a loss to explain the behavior. is there some way a phantom signal could be creeping in? Any tests I can do? (I have a simple multimeter, no line analyzers).
While it's amusing that a command to throw a switch will start up the brewery singing "roll out the barrel", or on the other table, the broken down truck with steam escaping the hood and a frustrated driver chatting about it all, it's only amusing the first few times, especially if i'm busy doing a lot of switching during an operating session.
-Scott
