modbus wellpro 3082 - ai 데이타 읽어오기
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import logging, sys, time
from pymodbus.client.sync import ModbusSerialClient as ModbusClient
'''
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)
'''
modbus_client = ModbusClient(method="rtu", baudrate=9600, parity="N", port="COM3", timeout=1)
modbus_client.connect()
#print("connect ======> ", modbus_client)
while True:
read_hr = modbus_client.read_holding_registers(address=0, count=8, unit=1)
#print("read_hr ======>", read_hr)
read_data = read_hr.registers
#print("read_data =======>", read_data)
for read_value in read_data:
read_comp = read_value * 20 / 4095
print ("read_value => ", read_value, " :: read_comp => ", read_comp)
time.sleep(3)
modbus_client.close()
# mA => 온도 변환식
a = 12.37
m_start = 20
m_end = 4
r_start = 60
r_end = -40
re = (r_start - r_end) * (a - m_end)
re = re / (m_start -m_end)
re = re + r_end
print( " re ==> ", re)
# 습도 계산식
a = 15.99
m_start = 20
m_end = 4
r_start = 100
r_end = 0
re = (r_start - r_end) * (a - m_end)
re = re / (m_start -m_end)
re = re + r_end
print( " re ==> ", re)
- 이전글wellpro 3025 릴레이 읽고 쓰기 22.11.23
- 다음글wellpro 3078 ao 통신 22.11.23
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