Zwave Scene Number - Command or Update?

[rlkoshak (Rich Koshak)]

@RolfV

It receives a command, and as described in the link below, a received update rule should not be triggered by that.

received command will only trigger on a command.

charged will trigger only if the item changes state regardless of whether the charge came from a command or an update.

received update will trigger any time the Item gets updated regardless of whether the update causes the Item to change or not. A command will usually cause an update a well.

so, unless the item in question is not configured with autoupdate=false, a received update rule will trigger for commands because the command causes and update.

@jswim788

tried checking the item with ‘if (Scene.previousState() == NULL) return;’, but that did not work. Perhaps I need a .state at the end?

that won’t work because typically NULL and UNDEF do not get saved to the database. and .previiusState just returns data from the database.

If the rule is triggered by changed, then the previousState implicit variable will have NULL if the state changed because of restoreOnStartup.

@jswim788

I could not save it in the default persistence, but that doesn’t look easy to do without putting in everything explicitly and leaving this out.

Design Pattern: Group Based Persistence could help with this.