Commit message

control.json

@@ -1,33 +1,49 @@
 {
     "device": {
-        "setzero": {
+        "enter": {
             "action": "Off"
         },
+        "main": {
+            "action": "Off",
+            "duration": 4
+        },
         "measure": {
-            "action": "On",
-	    "duration": 20
+            "action": "On"
         },
         "mixed": {
-            "action": "Off",
-            "duration": 7
-        },
-        "pure": {
-            "action": "Off",
-            "duration": 10,
-            "holding": 5
-        },
-	"enter":{
-	    "action": "Off",
-	    "duration": 10
-	},
-        "vent": {
-            "action": "Off",
-            "duration": 30,
-            "holding": 2
+            "action": "Off"
         },
         "motor": {
             "action": "Off"
+        },
+        "pure": {
+            "action": "Off",
+            "duration": 4
+        },
+        "setzero": {
+            "action": "Off"
+        },
+        "vent": {
+            "action": "Off"
         }
     },
-    "type": "manual"
-}
+    "maintenance": {
+        "clean": {
+            "duration": 20,
+            "time": 25
+        }
+    },
+    "type": "manual",
+    "working-time": {
+        "step0": 5,
+        "step1": 10,
+        "step2": 0.5,
+        "step3": 4,
+        "step4": 20,
+        "step5": 20,
+        "step6": 0.5,
+        "step7": 15,
+        "step8": 10,
+        "step9": 140
+    }
+}

framework.yaml

@@ -1,11 +1,11 @@
-version: bwc/v2 # bwc 버전 정보입니다.
-spec: 
-  appName: sampyo-dio-app # 앱의 이름입니다.
-  runFile: main.py # 앱의 실행 파일입니다.
-  env:
-    bin: python3 # 앱을 실행할 바이너라 파일 종류입니다.(장비에 따라 다르므로 확인 후 정의해야 합니다.)
-    virtualEnv: base # 사용할 가상환경 이름입니다.
-    package: requirements.txt # 설치할 Python 패키지 정보 파일입니다.(기본 값은 requirement.txt 입니다.)
-stackbase:
-  tagName: v0.0.18 # Stackbase(gitea)에 릴리즈 태그명 입니다.
-  repoName: sampyo-dio # Stackbase(gitea)에 저장될 저장소 이릅니다.	
+version: bwc/v2 # bwc 버전 정보입니다.
+spec: 
+  appName: sampyo-dio-app # 앱의 이름입니다.
+  runFile: main.py # 앱의 실행 파일입니다.
+  env:
+    bin: python3 # 앱을 실행할 바이너라 파일 종류입니다.(장비에 따라 다르므로 확인 후 정의해야 합니다.)
+    virtualEnv: base # 사용할 가상환경 이름입니다.
+    package: requirements.txt # 설치할 Python 패키지 정보 파일입니다.(기본 값은 requirement.txt 입니다.)
+stackbase:
+  tagName: v0.0.51 # Stackbase(gitea)에 릴리즈 태그명 입니다.
+  repoName: sampyo-dio # Stackbase(gitea)에 저장될 저장소 이릅니다.	

main.py

@@ -1,6 +1,5 @@
 import json
 import time
-import argparse
 import sys, signal
 import gpiod
 from pymodbus.client import ModbusTcpClient
@@ -10,6 +9,8 @@ import pytz
 from datetime import datetime
 import threading, socket
 import uuid
+import logging
+from logging.handlers import RotatingFileHandler
 
 def Motor(chip, status, action):
     if action == 'On':
@@ -35,15 +36,101 @@ def Valve_MixedWater(chip, status, action):
     
     chip.set_values(status)
 
-def Valve_PureWater(chip, status, action):
-    if action == 'On':
-        status[3] = 1
-    else: # action == 'Off'
-        status[3] = 0
-    
-    chip.set_values(status)
+def Valve_PureWater(chip, status, action, duration=7):
+    global pure_valve_status
 
-def Valve_EnterWater(chip, status, action):
+    status[2] = 0
+    status[3] = 0
+    chip.set_values(status)
+    time.sleep(0.05)
+
+    if pure_valve_status != 0 and action == 'Off':
+        status[2] = 0
+        status[3] = 1
+        chip.set_values(status)
+        time.sleep(7)
+        pure_valve_status = 0
+    elif pure_valve_status == 0 and action == 'On':
+        status[2] = 1
+        status[3] = 0
+        chip.set_values(status)
+        time.sleep(duration)
+        if duration >= 7:
+            pure_valve_status = 2
+        elif duration < 7:
+            pure_valve_status = 1
+    
+    status[2] = 0
+    status[3] = 0
+    chip.set_values(status)
+    time.sleep(0.05)
+
+# def Valve_EnterWater(chip, status, action):
+def Valve_EnterWater(chip, status, action, duration=7):
+    # if action == 'On':
+    #     status[4] = 1
+    # else: # action == 'Off'
+    #     status[4] = 0
+    
+    # chip.set_values(status)
+    global main_valve_status
+    
+    status[5] = 0
+    status[6] = 0
+    chip.set_values(status)
+    time.sleep(0.05)
+
+    if main_valve_status != 0 and action == 'Off':
+        status[5] = 0
+        status[6] = 1
+        chip.set_values(status)
+        time.sleep(7)
+        main_valve_status = 0
+    elif main_valve_status == 0 and action == 'On':
+        status[5] = 1
+        status[6] = 0
+        chip.set_values(status)
+        time.sleep(duration)
+        if duration >= 7:
+            main_valve_status = 2
+        elif duration < 7:
+            main_valve_status = 1
+    
+    status[5] = 0
+    status[6] = 0
+    chip.set_values(status)
+    time.sleep(0.05)
+
+# def Valve_MainWater(chip, status, action, duration=7):
+def Valve_MainWater(chip, status, action):
+    global main_valve_status
+    
+    # status[5] = 0
+    # status[6] = 0
+    # chip.set_values(status)
+    # time.sleep(0.05)
+
+    # if main_valve_status != 0 and action == 'Off':
+    #     status[5] = 0
+    #     status[6] = 1
+    #     chip.set_values(status)
+    #     time.sleep(7)
+    #     main_valve_status = 0
+    # elif main_valve_status == 0 and action == 'On':
+    #     status[5] = 1
+    #     status[6] = 0
+    #     chip.set_values(status)
+    #     time.sleep(duration)
+    #     if duration >= 7:
+    #         main_valve_status = 2
+    #     elif duration < 7:
+    #         main_valve_status = 1
+    
+    # status[5] = 0
+    # status[6] = 0
+    # chip.set_values(status)
+    # time.sleep(0.05)
+    
     if action == 'On':
         status[4] = 1
     else: # action == 'Off'
@@ -51,22 +138,23 @@ def Valve_EnterWater(chip, status, action):
     
     chip.set_values(status)
 
-def Measure_weight(client):
+def Measure_Weight(client):
     # print('in')
     val = 0
     try:
         result = client.read_holding_registers(1, 1)
-        if result.iserror():
+        if not result:
             print(f'Error: {result}')
         else:
             val = result.registers[0]
             val -= 1000
             val /= 1000            
-            print(f'value: {val}')
+            # print(f'value: {val}')
     except Exception as e:
+        print(f'Measure_Weight Error: {e}')
         pass
     
-    return val
+    return float(val)
 
 def Calculate_Concentration(weight):
     global data, volume_water
@@ -74,110 +162,144 @@ def Calculate_Concentration(weight):
     result = (float(weight) * volume_water * 128.5) - 126.11 # 1000 / 531 = 1.883239171
     data['data']['concentration'] = result
     # print(f'{weight}, {result}')
+    return result
 
 def Set_Zero(client):
     client.write_coil(1, 1)
 
 def Command_Read():
+    global client, main_valve_status, logger
+
     with open('./control.json', 'r') as f:
         cmd = json.load(f)
 
     if cmd['type'] == 'auto':
+        main_duration = float(cmd['device']['main']['duration'])
+        pure_duration = float(cmd['device']['pure']['duration'])
+        step0_duration = float(cmd['working-time']['step0'])
+        step1_duration = float(cmd['working-time']['step1'])
+        step2_duration = float(cmd['working-time']['step2'])
+        step3_duration = float(cmd['working-time']['step3'])
+        step4_duration = float(cmd['working-time']['step4'])
+        step5_duration = float(cmd['working-time']['step5'])
+        step6_duration = float(cmd['working-time']['step6'])
+        step7_duration = float(cmd['working-time']['step7'])
+        step8_duration = float(cmd['working-time']['step8'])
+        step9_duration = float(cmd['working-time']['step9'])
         
-        Valve_Vent(chip=output_lines, status=status, action='Off')
-        Motor(chip=output_lines, status=status, action='Off')
         
-        mixed_duration = int(cmd['device']['mixed']['duration'])
-        pure_duration = int(cmd['device']['pure']['duration'])
-        pure_holding = int(cmd['device']['pure']['holding'])
-        vent_duration = int(cmd['device']['vent']['duration'])
-        vent_holding = int(cmd['device']['vent']['holding'])
-        measure_duration = int(cmd['device']['measure']['duration'])
-        enter_duration = int(cmd['device']['enter']['duration'])
-
-        time.sleep(7)
-        start = Measure_Weight(client=client)
-        time.sleep(5)
+        # Step 0. Mesure init weight before starting the sequence
+        time.sleep(step0_duration)
+        start = Measure_Weight(client=client) 
         
-        # input mixed water
-        Valve_MixedWater(chip=output_lines, status=status, action='On')
+        # Step 1. Vent pured water before input mixed water
+        # Target valve status: [Motor: Off, Vent: On, Pure: Off, Enter: On, Main: On]
+        # Valve_EnterWater(chip=output_lines, status=status, action='On')
+        Valve_MainWater(chip=output_lines, status=status, action='On')
         time.sleep(0.5)
-        Valve_EnterWater(chip=output_lines, status=status, action='On')
-        time.sleep(mixed_duration)
-        Valve_MixedWater(chip=output_lines, status=status, action='Off')
+        Valve_Vent(chip=output_lines, status=status, action='On')
+        time.sleep(0.5)
+        # Valve_MainWater(chip=output_lines, status=status, action='On', duration=main_duration)
+        Valve_EnterWater(chip=output_lines, status=status, action='On', duration=main_duration)
+        time.sleep(step1_duration)
+        
+        # Step 2. Empty the remaining pure water
+        # Target valve status: [Motor: Off, Vent: On, Pure: Off, Enter: Off, Main: On]
+        Valve_EnterWater(chip=output_lines, status=status, action='Off')
+        time.sleep(step2_duration)
+        
+        # Step 3. Input the mixed water
+        # Target valve status: [Motor: Off, Vent: Off, Pure: Off, Enter: On, Main: On]
+        Valve_Vent(chip=output_lines, status=status, action='Off')
+        time.sleep(0.5)
+        # Valve_EnterWater(chip=output_lines, status=status, action='On')
+        Valve_EnterWater(chip=output_lines, status=status, action='On', duration=main_duration)
+        time.sleep(step3_duration)
+        
+        # Step 4. Mesure the weight
+        # Target valve status: [Motor: Off, Vent: Off, Pure: Off, Enter: Off, Main: Off]
+        Valve_MainWater(chip=output_lines, status=status, action='Off')
         time.sleep(0.5)
         Valve_EnterWater(chip=output_lines, status=status, action='Off')
-        time.sleep(measure_duration)
-
-        # measure weight
+        time.sleep(step4_duration)
+        
+        
         end = Measure_Weight(client=client)
         time.sleep(1)
         
-        Calculate_Concentration(weight=(float(end)-float(start)))
-
-        # # vent mixed water
-        # Valve_Vent(chip=output_lines, status=status, action='On')
-        # time.sleep(0.5)
-        # Motor(chip=output_lines, status=status, action='On')
-        # time.sleep(vent_duration)
-        # Motor(chip=output_lines, status=status, action='Off')
-        # time.sleep(0.5)
-        # Valve_Vent(chip=output_lines, status=status, action='Off')
-        # time.sleep(0.5)
-
-        # # input pure water
-        # Valve_PureWater(chip=output_lines, status=status, action='On')
-        # time.sleep(pure_duration)
-        # Valve_PureWater(chip=output_lines, status=status, action='Off')
-        # time.sleep(0.5)
-
-        # # vent pure water
-        # Valve_Vent(chip=output_lines, status=status, action='On')
-        # time.sleep(0.5)
-        # Motor(chip=output_lines, status=status, action='On')
-        # time.sleep(vent_duration)
-        # Motor(chip=output_lines, status=status, action='Off')
-        # time.sleep(0.5)
-        # Valve_Vent(chip=output_lines, status=status, action='Off')
-        # time.sleep(1)
+        res = Calculate_Concentration(weight=(float(end)-float(start)))
         
-        # Vent and Clear sequence
-        # 1) Open Vent and wait for 2 sec
+        logger.debug(f'[auto] weight: {end - start} concentration: {res:.3f}')
+
+        # Step 5. Drain the mixed water and add pure water.
+        # Target valve status: [Motor: Off, Vent: On, Pure: On, Enter: On, Main: Off]
         Valve_Vent(chip=output_lines, status=status, action='On')
-        time.sleep(vent_holding)
-        
-        # 2) Motor On
-        Motor(chip=output_lines, status=status, action='On')
-        time.sleep(0.5)
-        
-        # 3) Input Pure Water
-        Valve_PureWater(chip=output_lines, status=status, action='On')
         time.sleep(0.5)
         Valve_EnterWater(chip=output_lines, status=status, action='On')
-        time.sleep(pure_duration + pure_holding)
-        Valve_PureWater(chip=output_lines, status=status, action='Off')
-        time.sleep(0.5)
-        Valve_PureWater(chip=output_lines, status=status, action='Off')
-        time.sleep(0.5)
-
-        # 4) Wait until empty
-        time.sleep(vent_duration)
-
-        # 5) Motor Off and Vent close
-        Motor(chip=output_lines, status=status, action='Off')
         time.sleep(0.5)
+        # Valve_PureWater(chip=output_lines, status=status, action='On', duration=pure_duration)
+        Valve_PureWater(chip=output_lines, status=status, action='On')
+        time.sleep(step5_duration)
+        
+        # Step 6. Drain mixed water
+        # Target valve status: [Motor: Off, Vent: On, Pure: On, Enter: Off, Main: Off]
+        Valve_EnterWater(chip=output_lines, status=status, action='Off')
+        time.sleep(step6_duration)
+        
+        # Step 7. Input pure water and clean
+        # Target valve status: [Motor: On, Vent: Off, Pure: On, Enter: On, Main: Off]
         Valve_Vent(chip=output_lines, status=status, action='Off')
         time.sleep(0.5)
-
-        return 1
+        Valve_EnterWater(chip=output_lines, status=status, action='On')
+        time.sleep(0.5)
+        Motor(chip=output_lines, status=status, action='On')
+        time.sleep(step7_duration)
         
+        # Step 8. Drain pure Water
+        # Target valve status: [Motor: On, Vent: On, Pure: Off, Enter: Off, Main: Off]
+        Valve_Vent(chip=output_lines, status=status, action='On')
+        time.sleep(0.5)
+        Valve_EnterWater(chip=output_lines, status=status, action='Off')
+        time.sleep(0.5)
+        Valve_PureWater(chip=output_lines, status=status, action='Off')
+        time.sleep(step8_duration)
+
+        # Step 9. Stop moter
+        # Target valve status: [Motor: Off, Vent: On, Pure: Off, Enter: Off, Main: Off]
+        Motor(chip=output_lines, status=status, action='Off')
+        time.sleep(step9_duration)
+        
+        return 1
+
+    elif cmd['type'] == 'clean':
+        logger.debug(f"[clean] duration: {int(cmd['maintenance']['clean']['duration'])}")
+        clean_system()
+        time.sleep(3)
+
     else: # cmd['type'] == 'manual'
         Motor(chip=output_lines, status=status, action=cmd['device']['motor']['action'])
         Valve_Vent(chip=output_lines, status=status, action=cmd['device']['vent']['action'])
-        Valve_MixedWater(chip=output_lines, status=status, action=cmd['device']['mixed']['action'])
-        Valve_PureWater(chip=output_lines, status=status, action=cmd['device']['pure']['action'])
-        Valve_EnterWater(chip=output_lines, status=status, action=cmd['device']['enter']['action'])
+        # Valve_MixedWater(chip=output_lines, status=status, action=cmd['device']['mixed']['action'])
+        # Valve_PureWater(chip=output_lines, status=status, action=cmd['device']['pure']['action'])
+        # Valve_EnterWater(chip=output_lines, status=status, action=cmd['device']['enter']['action'])
+        Valve_MainWater(chip=output_lines, status=status, action=cmd['device']['main']['action'])
         
+        if cmd['device']['pure']['duration'] == 0:
+            Valve_PureWater(chip=output_lines, status=status, action=cmd['device']['pure']['action'])
+        else:
+            Valve_PureWater(chip=output_lines, status=status, action=cmd['device']['pure']['action'], duration=cmd['device']['pure']['duration'])
+        
+        # if cmd['device']['main']['duration'] == 0:
+        #     Valve_MainWater(chip=output_lines, status=status, action=cmd['device']['main']['action'])
+        # else:
+        #     Valve_MainWater(chip=output_lines, status=status, action=cmd['device']['main']['action'], duration=cmd['device']['main']['duration'])
+
+        if cmd['device']['main']['duration'] == 0:
+            Valve_EnterWater(chip=output_lines, status=status, action=cmd['device']['enter']['action'])
+        else:
+            Valve_EnterWater(chip=output_lines, status=status, action=cmd['device']['enter']['action'], duration=cmd['device']['main']['duration'])
+
+    
         if cmd['device']['measure']['action'] == 'On':
             result = Measure_Weight(client=client)
             Calculate_Concentration(result)
@@ -188,6 +310,37 @@ def Command_Read():
     
     return 0
 
+def clean_system():
+    global main_valve_status
+    with open('./control.json', 'r') as f:
+        cmd = json.load(f)
+    
+    clean_duration = int(cmd['maintenance']['clean']['duration'])
+
+    if cmd['type'] == 'clean':
+        Valve_EnterWater(chip=output_lines, status=status, action='Off')
+        time.sleep(0.5)
+        
+        Valve_MainWater(chip=output_lines, status=status, action='On')
+        time.sleep(0.5)
+        Valve_PureWater(chip=output_lines, status=status, action='On')
+        time.sleep(clean_duration)
+        
+        Valve_MainWater(chip=output_lines, status=status, action='Off')
+        time.sleep(0.5)
+
+        Valve_EnterWater(chip=output_lines, status=status, action='On')
+        time.sleep(0.5)
+        Valve_Vent(chip=output_lines, status=status, action='On')
+        time.sleep(clean_duration)
+
+        Valve_PureWater(chip=output_lines, status=status, action='Off')
+        time.sleep(0.5)
+        Valve_Vent(chip=output_lines, status=status, action='Off')
+        time.sleep(0.5)
+        Valve_EnterWater(chip=output_lines, status=status, action='Off')
+        time.sleep(0.5)
+
 def runAction():
     # Write the app's actions in the "runAction" function.
     
@@ -198,6 +351,7 @@ def runAction():
     # 1. device-app-test   -> Good 
     # 2. device-app-light-app   -> Good
     # 3. device-test-app -> Bad
+    global data
     sdtcloud = sdtcloudnodeqmqtt.sdtcloudnodeqmqtt()
     mqttClient1 = sdtcloud.setClient(f"device-app-1{uuid.uuid1()}") # parameter is client ID(string)
     mqttClient2 = sdtcloud.setClient(f"device-app-2{uuid.uuid1()}") # parameter is client ID(string)
@@ -211,8 +365,8 @@ def runAction():
     # - Asset Code's variable: assetCode(string)
     # - You may need it to create a topic.
 
-
     cnt = 0
+    clean_flag = 0
     while True:
         start = time.time()
         result = Command_Read()
@@ -225,13 +379,30 @@ def runAction():
                 cnt = 0
 
         end = time.time()
-        
+
+        try:
+            now = datetime.now(pytz.timezone('Asia/Seoul'))
+            time_str = now.strftime('%H')
+            time_int = int(time_str)
+
+            with open('./control.json', 'r') as f:
+                cmd = json.load(f)
+
+            if time_int == int(cmd['maintenance']['clean']['time']):
+                if clean_flag < 3:
+                    clean_flag += 1
+                    clean_system()
+            else:
+                clean_flag = 0
+        except:
+            pass
+
         diff = end - start
         if diff < 3:
             time.sleep(3 - diff)
 
 def handle_client(conn, ip, port):
-    global data
+    global data, logger
     while True:
         try:
             recv = conn.recv(100)
@@ -254,6 +425,8 @@ def handle_client(conn, ip, port):
                     data_weight = '{:.3f}'.format(h_weight)
                     data_concent = '{:.3f}'.format(h_concentration)
                     
+                    logger.debug(f'TCP [R:Transfer data] weight: {data_weight}, concent: {data_concent}')
+                    
                     send_msg = 'STX' + time_str + '|' + data_weight + '|' + data_concent + 'ETX'
                     
                     try:
@@ -271,6 +444,7 @@ def handle_client(conn, ip, port):
                         conn.sendall(err_msg.encode("utf8"))
                 
                 elif message[3] == 'S': # Start measurement
+                    logger.debug(f'TCP [S:Start measurement]')
                     try:
                         with open('./control.json', 'r') as f:
                             cmd = json.load(f)
@@ -285,8 +459,26 @@ def handle_client(conn, ip, port):
                     except Exception as e:
                         err_msg = 'STXERRORETX'
                         conn.sendall(err_msg.encode("utf8"))
+                
+                elif message[3] == 'C': # Clean sequence
+                    logger.debug(f'TCP [C:Clean sequence]')
+                    try:
+                        with open('./control.json', 'r') as f:
+                            cmd = json.load(f)
+
+                        cmd['type'] = 'clean'
+
+                        with open('./control.json', 'w') as f:
+                            json.dump(cmd, f, indent=4)
                         
+                        send_msg = 'STXOKETX'
+                        conn.sendall(send_msg.encode("utf8"))
+                    except Exception as e:
+                        err_msg = 'STXERRORETX'
+                        conn.sendall(err_msg.encode("utf8"))
+
                 elif message[3] == 'T': # Stop measurement
+                    logger.debug(f'TCP [T:Stop measurement]')
                     try:
                         with open('./control.json', 'r') as f:
                             cmd = json.load(f)
@@ -313,7 +505,7 @@ def handle_client(conn, ip, port):
     # print("Closing the connection")
 
 def start_server(addr, port):
-    host = addr # "25.7.57.1"
+    host = addr # "172.17.16.201"
     port = port # 5000
 
     soc = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
@@ -335,18 +527,26 @@ def start_server(addr, port):
         client_handler.start()
 
     soc.close()
+
+def seoul_time(*args):
+    utc_dt = datetime.now()
+    seoul_tz = pytz.timezone('Asia/Seoul')
+    return utc_dt.replace(tzinfo=pytz.utc).astimezone(seoul_tz).timetuple()
         
 def exit_handler(signum, frame):
     Motor(chip=output_lines, status=status, action='Off')
     Valve_Vent(chip=output_lines, status=status, action='Off')
-    Valve_MixedWater(chip=output_lines, status=status, action='Off')
+    # Valve_MixedWater(chip=output_lines, status=status, action='Off')
     Valve_PureWater(chip=output_lines, status=status, action='Off')
+    Valve_EnterWater(chip=output_lines, status=status, action='Off')
+    Valve_MainWater(chip=output_lines, status=status, action='Off')
     
     client.close()
     
     sys.exit(0)
         
 if __name__ == "__main__":
+    # Set GPIO
     output_chip = gpiod.chip('gpiochip11')
     config = gpiod.line_request()
     config.consumer = 'output'
@@ -357,18 +557,40 @@ if __name__ == "__main__":
     
     status = [0, 0, 0, 0, 0, 0, 0, 0]
     
+    # When forced to terminate
     signal.signal(signal.SIGINT, exit_handler)
     
+    # Set the logger
+    logger = logging.getLogger('sampyo_dio')
+    logger.setLevel(logging.DEBUG)
+    handler = RotatingFileHandler('/home/root/working.log', maxBytes=1024*1024, backupCount=3)
+    handler.setLevel(logging.DEBUG)
+    formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
+    formatter.converter = seoul_time
+    handler.setFormatter(formatter)
+    logger.addHandler(handler)
+   
+    # Initialized valves
+    main_valve_status = 0
+    pure_valve_status = 0
+    
+    Valve_MainWater(chip=output_lines, status=status, action='Off')
+    Valve_PureWater(chip=output_lines, status=status, action='Off')
+
+    # Read config file
     with open('./config.json', encoding='UTF-8') as f:
         jsonData = json.load(f)
 
+    # Set the weight of water in the chamber
     volume_water = 1000.0 / float(jsonData['volume-water']) 
     
+    # Set the IP address and port of NodeQ RS-232 module and activate TCP Client
     modbus_addr = jsonData['modbus-server']['address']
     modbus_port = jsonData['modbus-server']['port']
     
     client = ModbusTcpClient(modbus_addr, modbus_port)
     
+    # Define the default data format
     data = {
         "timestamp": 0,
         "data":{