Svenska ElektronikForumet

Kod: Markera allt

from time import sleep
import minimalmodbus
from pyModbusTCP.server import ModbusServer, DataBank

# Create the RTU connection for the EM111
meter = minimalmodbus.Instrument('COM1', 1)   # Meter connected at COM1 and has save address 1
meter.serial.baudrate = 9600
meter.serial.timeout = 0.5

# Create the MODBUS TCP server
server = ModbusServer("192.168.10.198", 5003, no_block=True)

try:
    server.start()
    print("MODBUS TCP Server started")
    
except:
    server.stop()
    print("Could not start MODBUS TCP Server")


while True:
    try:
      Frequency = meter.read_register(0x000F, 0, 3, False)
      Voltage = meter.read_register(0x0000, 0, 3, False)
      print("F:", Frequency/10, " V:", Voltage/10)

      DataBank.set_words(0,[Voltage])
      DataBank.set_words(1,[Frequency])
   
    except IOError:
        print("Failed to read from meter")

    except ValueError:
        print("Value error")

    except TypeError:
        print("Type Error")
   
    except KeyboardInterrupt:
      print("Abort, stopping server")
      server.stop()
      raise

    except:
        print("Something else went wrong")

    sleep(1.0)