modbus TCP Mqtt 从CSV文件中读取配置参数

# @File  : pub.py
# @Author: Wang Zhimin
# @Date  :  2021/05/19
# python 3.6
import json
import random
import time
from datetime import datetime
from paho.mqtt import client as mqtt_client
import modbus_tk
# import modbus_tk.defines as cst
# import modbus_tk.modbus_tcp as modbus_tcp
import pandas as pd
import modbus_tk.defines as md
import modbus_tk.modbus_tcp as mt
logger = modbus_tk.utils.create_logger("console")
import logging

data3=pd.read_csv("./Config2.csv")
# print(data3.iloc[0,1])
broker = str(data3.iloc[0,1])
port = int(data3.iloc[0,4])
topic = "data"
# generate client ID with pub prefix randomly
# client_id = f'python-mqtt-{random.randint(0, 1000)}'
client_id = f"{str(data3.iloc[0,0])}"
username=str(data3.iloc[0,2])
password=str(data3.iloc[0,3])

def connect_mqtt():
    def on_connect(client, userdata, flags, rc):
        if rc == 0:
            logger.info("Connected to MQTT Broker!")
        else:
            logger.info("Failed to connect, return code %d\n", rc)

    client = mqtt_client.Client(client_id)
    client.on_connect = on_connect
    client.username_pw_set(username=username, password=password)
    client.connect(broker, port)
    return client


def publish(client):
    # msg_count = 0
    try:
        while True:
            time.sleep(0.1)

            data=pd.read_csv("./Config.csv")
            data2=pd.read_csv("./Config2.csv")



            jsonlist=[]
            for i in range(data.shape[0]):


                aaa=master.execute(slave=data.iloc[i,1], function_code=md.READ_INPUT_REGISTERS, starting_address=data.iloc[i,2], quantity_of_x=data.iloc[i,3], output_value=1)
                a=[]
                for k in aaa:
                    a.append(k/100)

                dict={"addr":str(i+1),"val":a}
                jsonlist.append(dict)

            dict2={"did":str(data2.iloc[0,0]),"utime":int(round(time.time()*1000)),"content":jsonlist}

            dict2_=json.dumps(dict2)
            msg = f"{dict2_}"
            result = client.publish(topic, msg)
            status = result[0]

            if status == 0:
                logger.debug(f"Send `{msg}` to topic `{topic}`")
            else:
                logger.info(f"Failed to send message to topic {topic}")
            # msg_count += 1

    except:
        logger.info("由于目标计算机积极拒绝，无法连接。")

        # logger.info()




def run():
    client = connect_mqtt()
    client.loop_start()
    publish(client)


if __name__ == '__main__':
    data4 = pd.read_csv("./Config2.csv")
    level_=data4.iloc[0,7]
    if int(level_)==0:
        logger.setLevel(level=logging.DEBUG)
    else:
        logger.setLevel(level=logging.INFO)


    while True:

        master = mt.TcpMaster(str(data4.iloc[0,5]), int(data4.iloc[0,6]))
        master.set_timeout(5.0)
        logger.info("connected")
        run()