67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
from src.variables.service import get_variable, set_variable
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from src.modules.RTD8.service import read_temp
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from src.modules.IndustrialAutomation.service_analog import set_0_10_out
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fans = [
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{
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"inputs": [ #temperature inputs
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{
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"type": "RTD", #Card type
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"stack": 1, #Card stack
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"channel": 1 #Card channel
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},
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{
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"type": "RTD", #Card type
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"stack": 1, #Card stack
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"channel": 2 #Card channel
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}
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],
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"temp_min": 40, #minimum temp for fan_min
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"temp_max": 70, #maximum temp for fan_max
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"fan_min": 0, #fan minimum 0-10V set
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"fan_max": 10, #fan maximum 0-10V set
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"output_stack": 0, #stack card
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"output_channel": 2 #card channel
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}
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]
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def get_temp(channel: dict) -> float:
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match channel["type"]:
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case "RTD":
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return read_temp(stack=channel["stack"], channel=channel["channel"])
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case _:
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return 0
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def max_temp(channels: list) -> float:
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temp: float = 0
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for channel in channels:
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temp_ch = get_temp(channel=channel)
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if temp < temp_ch:
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temp = temp_ch
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return temp
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def fan_control():
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for fan in fans:
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temp = max_temp(fan["inputs"])
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if temp > fan["temp_max"]:
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set_0_10_out(stack=fan["output_stack"], channel=fan["output_channel"], value=10)
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elif temp < fan["temp_min"]:
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set_0_10_out(stack=fan["output_stack"], channel=fan["output_channel"], value=0)
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else:
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temp_calc = temp - fan["temp_min"]
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temp_max_calc = fan["temp_max"] - fan["temp_min"]
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calc_out = round(temp_calc / temp_max_calc, 4) * 10
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set_0_10_out(stack=fan["output_stack"], channel=fan["output_channel"], value=calc_out)
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