1. I did set the location in "Hardware Configuration" screen and I click "Update Interface"
Did you verify that the times in the Dusk/Dawn tables look correct? Those are the times you should expect the timer to fire. Make sure that the time zone settings in Windows are correct, too. That has been known to throw off the AHP times, too.
2. If I click "ON" at dusk, the time is grayed out
That's what is supposed to happen. It won't let you set the time, because it is set for you. However, have you verified that the "Dusk Offset" is set to "0"?
3. Off time is not dawn, set for 3 minutes later to check
To make sure I understand this, for example, if Dusk is at 7:00 PM, you are setting the "off" time to 7:03 PM"?
You're basing it on the Dusk time listed for the current date range in the Dusk/Dawn tables in the Hardware Configuration, right?
4. Store in interface is checked
Sounds right.
5. I have been setting the system clock on the computer to 3 minutes before "dusk" time, double checking PM and time, saving, downloading to CM15A
That should work, especially considering that you said the "off" time is working.
6. No "ON" codes show up on Activity Monitor. Off codes show up 3 minutes later just like it should.
Does ANYTHING show up at that time? Did anything show up from the time it should have fired the timer until it got to the "Off" timer? As another test, you might want to set up a timer (on a separate module of the same type - can be a "dummy" code you aren't using), and hard-set the time to what the Dawn time should be. See if that does anything.
7. Resolution is set to every 8 days
Make sure you are looking at the correct Dusk time, then. For whatever reason, the Dusk/Dawn tables have overlapping dates (the end date of one group is the same as the start date of the next). I don't know which one it uses if you are on that overlap date. Check both.
8. Status time bar on bottom of AHP shows phony time I set for testing purposes.
good.
9. Codes always go somewhere between 30 to 45 seconds after the set minute....normal?
That's normal. They changed that a few years ago. You used to be able to set a specific second to do stuff, but it was causing problems. There is a cycle, which is actually based on when (during the minute) it finished downloading to the CM15A. Each time you download, you should see that "trigger" time shift within the minute. Sometimes, if it finished toward the end of the minute, timers won't fire until the NEXT minute.
I think you are on to something that the Dusk/Dawn settings are not getting to the CM15A (I guess that is a stupid statment, cause if they were there, the codes would be sent, right?)
Maybe, maybe not. It could be that the settings are getting there, but they aren't what you think they are.
Check all the stuff I pointed out above, and then try it again and see what happens.
one more thing...
When I click on "Hardware Configuration" it shows Memory usage as Macros .55%, Timed Events .25% and Dusk/Dawn 1.75%. Don't know if those are acurate or if that information even comes directly from the CM15A?
Those are actually provided by AHP, based on how much space it calculates those items take up.
Here are a few more tests:
a) Try using the "dawn" times, and see if those work for you at all.
b) Try changing the module to an Appliance module. That should eliminate any SoftStart questions.
c) Try working in this order when testing:
Change the Pc time, allowing enough time to do the rest of the sequence, with at least one minute to spare
Open AHP (AFTER you change the time)
Clear interface memory
Re-download
Test
Keep us posted.