Description

Version: 0.0.1 python 2.x,3.x

Project easy Modbus.

In this package you can connect in TCP, RTU or ASC mode in modbus usign a mask to collect everything from your device

Donate

PIX: +55 31 99101-8619

Contact

URL: http://estaleiroweb.com.br

GIT: https://github.com/estaleiroweb/emodbus

Instalation

pip install emodbus

Upgrade

pip install emodbus -upgrade

Use

import emodbus as emb

# connect to bus of devices
tcp = emb.ConnTCP('192.168.1.45')
rtu = emb.ConnRTU('COM4')

# define default MIB
# {name: (Address:int,functionCode:int,callbackFunction_modbustype:'None|str|tuple|list'),....},
addrs = {
    'Temperature': [1, 4, ('Dec', {'dec': 1})],
    'Humidy': [2, 4, ['Dec', {'dec': 1}]],
    'TemperatureRaw': [1, 4],
    'HumidyRaw': [2, 4],
}
emb.Conn.defSlave(1, addrs)

# Read MIB of any slave of the connection
print('TCP MIB Slave 1', tcp.slave(1)(), sep=':')
print()

# define MIB of connection/slave
tcp.slave(1, addrs)
# read all MIB
slaves = [1]
for slave in slaves:
    print('Read All Slave ', slave)
    print('TCP',tcp.read(slave), sep=':')
    print('RTU',rtu.read(slave), sep=':')
print()

# read only some address
addr = ['Temperature', 'xxxxxxxxxx', 'Humidy']
for slave in slaves:
    print('Read Slave '+str(slave), addr, sep=':')
    print('TCP',tcp.read(slave, addr), sep=':')
    print('RTU',rtu.read(slave, addr), sep=':')