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+--- Thread: Advice on hanging Resident script (suspect storage get/set) (/showthread.php?tid=124)
Advice on hanging Resident script (suspect storage get/set) - oab_nor - 04.11.2015
Hi, i'm experiencing some kind of hang/blocking/locking when this script runs for a few days.
The script runs as a Resident script every minute, but suddenly it stops. I try to disable, re- enable but without any success.
Then, when I alter the storage key ('3_3_15_vent_effect') to e.g. '3_3_15_vent_effect_1' it runs fine for some time (days?).
Should I safeguard the storage get/set in some way? I'm I missing something obvious here?
Code:
deltaThreshold = 0.015
t1 = grp.getvalue('3/3/10')
t2 = grp.getvalue('3/3/11')
t3 = grp.getvalue('3/3/14')
-- Calc. effect
effect = (t1 - t3) / (t2 - t3)
prev_effect = storage.get('3_3_15_vent_effect', 0)
effectDelta = math.abs(prev_effect - effect)
-- Write to KNX buss if Delta > Treshold
if effectDelta > deltaThreshold then
grp.write('3/3/15', effect)
-- Store Calculated effect
storage.set('3_3_15_vent_effect', effect)
log("New reading - Effect prev.=" .. prev_effect .. " New = " .. effect)
endAbout the script: Calculate the effect of a heat recovery unit. Input values are collected from ModBus interface on LM (no need to do a grp.read()). I don't want to flood the KNX buss by writing every calculation, therefore the delta calculation.
Alternative approaches are welcome...
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Ole A.
RE: Advice on hanging Resident script (suspect storage get/set) - admin - 04.11.2015
You don't need storage in a resident script like this. All variables will keep their values after each call, but will be nil on first script run, so you have to check for that. Sending a telegram once a minute is not a problem. You should use grp.update instead of grp.write if you don't need this value on KNX/TP bus.
RE: Advice on hanging Resident script (suspect storage get/set) - oab_nor - 05.11.2015
Thank you for clarifying. Didn't realize variables were persisted at this level.
Needs the values on the bus, and as we know, "he" is a grumpy ~100year old man you shouldn’t nag too often
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Ole A.
RE: Advice on hanging Resident script (suspect storage get/set) - PassivPluss - 05.11.2015
I did this another way, I also use the modbus to collect from Systemair unit as well as my 1 wire sensors in the hc unit to collect values.
I have made a script that runs on event change. That means if one of the three values are updated then the script runs. Works as a charm
results last 24 hours can be viewed on www.passivpluss.no