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FAQ

General questions

Q: How many connected device does eWon drivers eXtender support?
A: It was tested with 31 solar inverter for a total of 500 tag.

Q: Which eWON firmware version do I need in order to run eWon drivers eXtender?
A: eWon drivers eXtender is compatible with eWON's firmware 6.0s1 and later.

Q: How can I uninstall the eWon drivers eXtender?
A: To uninstall the software, perform the following steps:

  • Stop the JVM (JavaVitualMachine) by inserting the following link into your browser. Replace "IP-eWon" with the IP address of your device.
    • http://IP-eWon/rcgi.bin/jvmCmd?cmd=stop
  • Remove the following files from eWON's "usr" directory:
    • /usr/Config
    • /usr/JavaApp
    • /usr/license
    • /usr/Jvmrun
  • Remove the eWON TAG using the eWON's web interface.

Q: How can I enable/disable the proprietary comunication protocol?
A: The following two basic functions are provided in order to start/stop of the Modbus protocol:

  • Enable Modbus protocol at 9600 Baud
    ModbusEnable:
    SETSYS SYS, "LOAD"
    SETSYS SYS, "MbsBaudRate", 9600
    SETSYS SYS, "SAVE" 
END
  • Disable Modbus protocol
    ModbusDisable:
 SETSYS SYS, "LOAD"
 SETSYS SYS, "MbsBaudRate", 0
 SETSYS SYS, "SAVE" 
END