Could not connect to serial port from Windows

Setup, Configuration and Use Beginners
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1

Hi, please help.
I am newbie in OpenHab and am trying connect to the serial port on windows using modbus binding.

Here is my conf:
serial.slave1.connection=“COM4”
serial.slave1.id=“1”
serial.slave1.length=“4”
serial.slave1.start=“0”
serial.slave1.type=“coil”

And here is error from logs:
[ERROR] [pi.modbus.io.ModbusSerialTransaction] - execute try 1/3 error: readResponse I/O exception - failed to read: readResponse: I/O exception - Serial port timeout… Request: net.wimpi.modbus.msg.ReadCoilsRequest@6e5f8669 (unit id 1 & transaction 889). Serial parameters: SerialParameters@7bec4c4b[portName=COM4,baudRate=9600,flowControlIn=none,flowControlOut=none,databits=8,stopbits=1,parity=none,encoding=ascii,echo=false,receiveTimeoutMillis=1500]

Versions:
OpenHab 2
Modbus binding 1.10.0
Windows 8.1

COM4 is exists and successfully tested from another program (connection not locked).

2

Make sure you have met all prerequisites:
https://docs.openhab.org/installation/windows.html

and double check your config in the modbus docs:
https://docs.openhab.org/addons/bindings/modbus1/readme.html