DCS/protocol/Celery/MBRTUMaster/MBRTUMTask.py

from celery import Task, shared_task

import os
import sys
import pickle
import time
import sqlite3
from peewee import *

sys.path.append('../../../')
sys.path.append('../')

from protocol.ModBus.rtumaster_example import RTUMaster
from protocol.Celery.MBRTUMaster import app

from utils.DBModels.BaseModel import *
from utils.DBModels.ProjectBaseModel import *

from protocol.Celery.MBRTUSlave.MBRTUSTask import ModBusRTUSTask

from utils.DBModels.ClientModels import ClientDB
from utils.DBModels.ProtocolModel import ModBusVar
from model.ProjectModel.VarManage import ModbusVarManage




class ModBusRTUMTask(ModBusRTUSTask):
    _RTUMaster = None
    _cursor = None
    _dbPath = None
    _setting = None
    _offset = None
    def __init__(self):
        super(ModBusRTUMTask, self).__init__()

    @property
    def rtuSlave(self):
        return

    @property
    def rtuMaster(self):
        if self._RTUMaster is None:
            port = str(self.setting[0])
            bytesize = int(self.setting[1])
            baudrate = int(self.setting[2])
            stopbits = int(self.setting[3])
            parity = str(self.setting[4].split(' ')[0])
            self._RTUMaster = RTUMaster(port = port, baudrate = baudrate, bytesize = bytesize, parity = parity, stopbits = stopbits, xonxoff=0)
        return self._RTUMaster




@shared_task(base = ModBusRTUMTask, bind = True, priority = 5)
def readValues(self): # 读取变量
    rtuMaster = self.rtuMaster
    # print(globals().keys(), 111111111111)
    # [var.id, var.varName, var.description, var.varType, var.slaveID, var.address, var.min, var.max]
    # varName = CharField()
    # varType = IntegerField()
    # createTime = CharField()
    # description = CharField()
    # address = CharField()
    # slaveID = CharField()
    # min = CharField()
    # max = CharField()
    # allVar = self.allVar
    self.cursor.execute("select * from ModBusVar")
    allVar = self.cursor.fetchall()
    varDict = {}
    if not allVar:
        return
    else:
        # print(allVar)
        for varMes in allVar:
            name = str(varMes[1])
            varType = str(varMes[2])
            slaveId = int(varMes[6])
            address = int(varMes[5]) - self.offset
            order = varMes[-1]
            # print(varType)

            if varType == '0':
                curValue = rtuMaster.readCoils(slaveId = slaveId, startAddress = address, varNums = 1)
            elif varType == '1':
                curValue = rtuMaster.readInputCoils(slaveId = slaveId, startAddress = address, varNums = 1)
            elif varType == '3':
                curValue = rtuMaster.readInputRegisters(slaveId = slaveId, startAddress = address, varNums = 1, order = order)
            elif varType == '4':
                curValue = rtuMaster.readHoldingRegisters(slaveId = slaveId, startAddress = address, varNums = 1, order = order)
            if curValue != 'error':
                self.influxDB.writeFun(str(name), curValue)
            varDict[name] = curValue
            try:
                value = app.backend.get(name).decode('utf-8')
                address2 = int(value.split(',')[0])
                value = value.split(',')[1]
                if '.' not in value:
                    value = int(value)
                else:
                    value = float(value)
                if address == address2:
                    if varType == '4':
                        rtuMaster.writeSingleRegister(slaveId = slaveId, address = address, outputValue = value, order = order)
                        app.backend.set(name, '')
                    elif varType == '0':
                        rtuMaster.writeSingleCoil(slaveId = slaveId, address = address, outputValue = value)
                        app.backend.set(name, '')
                # if '.' in value:
                #     value = float(value.split(',')[1])
                # else:
                #     value = int(value)
            except Exception as e:
                print(e)
    app.backend.set('ModBus', str(self.request.id))


    # print(rtuMaster.readInputRegisters(slaveId = 2, startAddress =  0, varNums = 10))

    # print(rtuMaster.readCoils(slaveId = 3, startAddress = 0, varNums = 10))

    # print(rtuMaster.readInputCoils(slaveId = 4, startAddress = 0, varNums = 10))
    # print(varDict)
    return varDict

@shared_task(base = ModBusRTUMTask, bind = True, priority = 1)
def setValue(self, name, varType, slaveID, address, value, order): # 写入变量
    # RTUModbus = RTUMaster(port = 'COM4', baudrate = 9600, bytesize = 8, parity = 'N', stopbits = 1, xonxoff=0)
    slaveID = int(slaveID)
    address = int(address) - self.offset
    varType = str(varType)
    app.backend.set(name, str(address) + ',' + str(value))
    return 'success2'