Hi,
I' d like to share the code I made to simulate a classic TON Delay Timer.
I run the following code in resident script with a time interval of 2sec (depends on required precision of course).
As it is a classic TON Delay Timer, some actions take place after the time counting which starts with the enabling of the Timer (condition = true).
If condition gets false before completing the Ton delay time setting, then the Timer is resetted and more generally a "condition = false" resets the timer.
Someone could add code in case "B" (outside "if"'s "else") to take back actions if it is desired.
I would like to ask :
1. In resident script was it necessary to use storage. That is, do variables keep their values among cycles?
2. Does writing to storage wear the SD Card?
Any other suggestions are welcome.
Thank you in advance.
I' d like to share the code I made to simulate a classic TON Delay Timer.
Code:
-- TON DELAY TIMER
-- PARAMETERS
time_delay_in_min = 0.3
timer = 'T001'
-- TIMER ENABLE CONDITIONS
v1 = grp.getvalue('38/1/1')
v2 = true
condition = v1 and v2
tmr_started = storage.get(timer .. '_s', false) -- Read start status of timer flag
tmr_start_time = storage.get(timer .. '_start_time')
tmr_ended = storage.get(timer .. '_e', false) -- Read end status of timer flag
if condition then --A
if tmr_started then --A1
if tmr_ended then --A1.1
-- do nothing
else --A1.2
log('Timer ' .. timer .. ' is running:')
delta = os.time() - tmr_start_time
if delta >= time_delay_in_min * 60 then --A1.2.1
storage.set(timer .. '_e', true)
log('Timer ' .. timer .. ' counting ended at : ' .. os.time())
--[[
actions to implement go here
]]--
end
end
else --A2 (timer did not start -> 1st run)
storage.set(timer ..'_s', true) -- set start status
storage.set(timer ..'_start_time', os.time()) --get current timestamp
log('Timer ' .. timer .. ' counting started at : ' .. os.time())
log('Timer ' .. timer .. ' Ton delay was set to : ' .. time_delay_in_min .. ' min')
end
else --B
if tmr_started then
if not tmr_ended then
log('Timer ' .. timer .. ' is resetted')
else
storage.set(timer ..'_e', false) end
end
storage.set(timer ..'_s', false)
endI run the following code in resident script with a time interval of 2sec (depends on required precision of course).
As it is a classic TON Delay Timer, some actions take place after the time counting which starts with the enabling of the Timer (condition = true).
If condition gets false before completing the Ton delay time setting, then the Timer is resetted and more generally a "condition = false" resets the timer.
Someone could add code in case "B" (outside "if"'s "else") to take back actions if it is desired.
I would like to ask :
1. In resident script was it necessary to use storage. That is, do variables keep their values among cycles?
2. Does writing to storage wear the SD Card?
Any other suggestions are welcome.
Thank you in advance.
