3 # A quick script to generate modbus test data, it requires minimalmodbus.
5 # This is free and unencumbered software released into the public domain.
11 minimalmodbus.PARITY= 'E'
13 connection = minimalmodbus.Instrument("/dev/ttyUSB0", 1)
20 a = connection.read_bit(3, functioncode=1)
23 b = connection.read_bit(0, functioncode=2)
26 connection.read_register(99, functioncode=3)
29 connection.read_register(120, functioncode=4)
32 connection.write_bit(3, True, functioncode=5)
35 connection.write_register(1, 0b01010101, functioncode=6)
38 connection.write_bit(2, True, functioncode=15)
41 connection.write_register(1, 0b10101010, functioncode=16)