add modbus tcp server

Projects/Modbus/Pipfile

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+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+
+[packages]
+modbus-tk = "*"
+
+[requires]
+python_version = "3.7"

Projects/Modbus/README.md

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+### Modbus server
+
+The program is an example just Server Modbas TSP
+
+Works at 
+ - 0.0.0.0:502
+
+### Default parameters:
+
+ - SLAVE_ID = 1
+ - STARTING_ADDRESS = 200
+ - RANGE_PARAM = 500
+
+### Installation and Dependencies
+
+1.[Python](https://python.org) Installed
+
+```bash
+pip install pipenv
+pipenv install
+```
+
+### Usage
+
+Navigate to the script's directory. Open up terminal and type in:
+
+```bash
+python main.py
+```

Projects/Modbus/main.py

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+import modbus_tk
+import modbus_tk.defines as cst
+import modbus_tk.modbus_tcp as modbus_tcp
+import modbus_tk.utils
+import time
+import sys
+import datetime
+
+SLAVE_ID = 1
+STARTING_ADDRESS = 200
+RANGE_PARAM = 500
+
+def timeServer():
+    now = datetime.datetime.now()
+    listTime = [now.second]
+    return listTime
+
+logger = modbus_tk.utils.create_logger(name="console", record_format="%(message)s")
+# CREATE server
+server = modbus_tcp.TcpServer()  # DEFAULT PORT=502
+
+if __name__=="__main__":
+    try:
+        logger.info("running...")
+        logger.info("Enter Ctrl+C for closing ModbusServer")
+
+        server.start()
+        slave_1 = server.add_slave(SLAVE_ID)
+        slave_1.add_block("a", cst.HOLDING_REGISTERS, STARTING_ADDRESS, RANGE_PARAM)
+        slave_1.set_values("a", STARTING_ADDRESS, range(RANGE_PARAM))
+
+        while True:
+            timeServerList = timeServer()
+            for address in range(STARTING_ADDRESS, RANGE_PARAM+1):
+                slave_1.set_values("a", address, (int)(timeServerList[0]))
+
+            time.sleep(1)
+
+
+    except modbus_tk.modbus_tcp.TcpServer as expTcpServer:
+        logger.error("%s- Code=%d" % (expTcpServer, expTcpServer.get_exception_code()))
+
+    finally:
+        logger.info("destory")
+        # STOP
+        server.stop()