#!/usr/bin/env python3 import os import sys import json DEBUG_FILE = True PACKAGE_PARENT = '..' SCRIPT_DIR = os.path.dirname(os.path.realpath(os.path.join(os.getcwd(), os.path.expanduser(__file__)))) sys.path.append(os.path.normpath(os.path.join(SCRIPT_DIR, PACKAGE_PARENT))) #(EP renamed) from utils.Device import Device from utils.DeviceSim import DeviceSim from utils.StatusManager import StatusManager #(EP renamed) class PLCSimulator(Device, StatusManager): class PLCSimulator(DeviceSim, StatusManager): # (EP) This simulator will generate some events ? EVENT_GENERATOR=False status = { "name": "STATUS", "from": "Beckhoff", "version_firmware": "20170809", "site": "OSM-Mexico", "date": "2017-03-03T13:45:00", "device": [{"name": "WXT520", "type": "meteo", "serial_number": "14656423", "valid": "yes", "values": [ {"name": "OutsideTemp", "value": 12.12, "unit": "Celcius", "comment": ""}, {"name": "OutsideHumidity", "value": 64.1, "unit": "percent", "comment": ""}, {"name": "Pressure", "value": 769.2, "unit": "mbar", "comment": "At site elevation"}, {"name": "RainRate", "value": 0.0, "unit": "mm/h", "comment": ""}, {"name": "WindSpeed", "value": 3.1, "unit": "m/s", "comment": ""}, {"name": "WindDir", "value": 202.3, "unit": "deg", "comment": "(N=0, E=90)"}, {"name": "DewPoint", "value": 8.3, "unit": "deg", "comment": ""} ] }, {"name": "DRD11", "type": "meteo", "serial_number": "RET6789", "valid": "yes", "values": [ {"name": "analog", "value": 2.345, "unit": "V", "comment": "3V=Dry <2.5V=Rain"}, {"name": "digital", "value": 1, "unit": "bool", "comment": "1=Dry 0=Rain"} ] }, {"name": "VantagePro", "type": "meteo", "serial_number": "ERTRY2344324", "valid": "no", "values": [ {"name": "OutsideTemp", "value": 12.45, "unit": "Celcius", "comment": ""}, {"name": "InsideTemp", "value": 20.28, "unit": "Celcius", "comment": ""}, {"name": "OutsideHumidity", "value": 65.3, "unit": "percent", "comment": ""}, {"name": "InsideHumidity", "value": 45.6, "unit": "percent", "comment": ""}, {"name": "Pressure", "value": 768.7, "unit": "mbar", "comment": "At site elevation"}, {"name": "RainRate", "value": 0.0, "unit": "mm/h", "comment": ""}, {"name": "WindSpeed", "value": 2.8, "unit": "m/s", "comment": ""}, {"name": "WindDir", "value": 207.0, "unit": "deg", "comment": "(N=0, E=90)"}, {"name": "WindDirCardinal", "value": "SW", "unit": "string", "comment": ""}, {"name": "DewPoint", "value": 8.5, "unit": "deg", "comment": ""} ] }, {"name": "MLX90614-1", "type": "meteo", "serial_number": "Unknown", "valid": "yes", "values": [ {"name": "SensorTemperature", "value": 23.56, "unit": "Celcius", "comment": ""}, {"name": "SkyTemperature", "value": -15.67, "unit": "Celcius", "comment": "Clear<-10 VeryCloudy>4"} ] }, {"name": "LAMP_FLAT_CAGIRE", "type": "calib", "serial_number": "REF_3434", "valid": "yes", "values": [ {"name": "status", "value": "on", "unit": "string", "comment": "on or off"}, {"name": "current", "value": 0.234, "unit": "Ampere", "comment": ""} ] }, {"name": "LAMP FLAT CAGIRE", "type": "calib", "serial_number": "REF_3434", "valid": "yes", "values": [ {"name": "status", "value": "on", "unit": "string", "comment": "on or off"}, {"name": "current", "value": 0.234, "unit": "Ampere", "comment": ""} ] }, {"name": "GLOBAL", "values": [ {"name": "mode", "value": "AUTO", "unit": "String", "comment": "AUTO OFF MANU"}, {"name": "is_safe", "value": True, "unit": "bool", "comment": "True or False"}, ] } ], } list = {"name": "LIST", "from": "Beckhoff", "version_firmware": "20170809", "site": "OSM-Mexico", "date": "2017-03-03T13:42:46", "command": [ {"name": "LIST", "type": "", "parameters": "" }, {"name": "SATUS", "type": "", "parameters": "" }, {"name": "LAMP_FLAT_CAGIRE", "type": "calib", "parameters": [ {"name": "value", "unit": "string", "comment": "on or off", "default": ""}, {"name": "current", "unit": "Ampere", "comment": "", "default": "0.345"} ] } ] } def __init__(self, argv): # DeviceSim init super().__init__(argv) # Listen to its own ip and port (the PLC's) self.setDevice("PLC") #EP added if (len(argv) > 1): self.setStatusManager("plcSimulator", argv) self.EVENT_GENERATOR = True def plcPrint(self, string: str): if DEBUG_FILE: print("PLCSimulator : " + string) def updateStatus(self, i: int): for dic in self.sims: # ex: dic is like "plcSimulator" : {"device_name":"VantagePro", "value_name":"RainRate", "value":12.0} if (int(dic["time"]) == i): print(dic) change = dic[self.status_name] # ex: {"device_name":"VantagePro", "value_name":"RainRate", "value":12.0} device_name = change["device_name"] # ex: VantagePro devices = self.status["device"] for device in devices: if device["name"] == device_name: values = device["values"] # ex: for VantagePro # values = # {"name": "OutsideTemp", "value": 12.45, "unit": "Celcius", "comment": ""}, # {"name": "InsideTemp", "value": 20.28, "unit": "Celcius", "comment": ""}, #... for value in values: if value["name"] == change["value_name"]: # This will indirectly update self.status value["value"] = change["value"] return 0 def handleConnections(self): print("number of connexions to handle: "+str(len(self.connections))) for conn in self.connections: print("current connexion: ") print(conn) data = self.readBytes(1024, conn) answer = "[" count = False #if data != "" and self.isError(data) is False: if data != "" and not self.isError(data): json_array = json.loads(data) command_list = json_array["command"] for command in command_list: if command["name"] == "STATUS": if count: answer += ',' answer += json.dumps(self.status) count = True elif command["name"] == "LIST": if count: answer += ',' answer += json.dumps(self.status) count = True else: print("command received by PLC simulator : [>>> "+ str(command["name"]) + " <<<] unknown") answer += ']' if len(answer) > 0 and answer != "[]": self.sendMessage(answer, conn) return (0) def loop(self): i = 0 if (self.EVENT_GENERATOR and self.ended==0): self.plcPrint("No entry for PLC found in config file : " + self.config_file) return False while (True): print("\n\n\nIteration "+str(i)+" :") if self.EVENT_GENERATOR: self.updateStatus(i) if (self.isConnected()): self.handleConnections() i += 1 if (self.EVENT_GENERATOR and i > self.ended): return (0) return True def run(self): if DEBUG_FILE: print("PLC simulator running...") if self.EVENT_GENERATOR and not self.parse(): return False self.configSocket() return self.loop() #return (0) if __name__ == "__main__": sim = PLCSimulator(sys.argv) sim.run()