The bottom border of the main form shows the actual connection status.


Left side: BSMon status

this section provides information about the status of the communication between PC and BSMon:

  • when the communication is active, a green mark will appear citing number 0 in square brackets


  • If the communication is not good, a red mark will notify it, and a related error message and number will explain the reason.
    The following are the most probable error conditions:

    means that during start-up of BSMon, the USB device had not been detected by the PC


    means that the PC could not detect the USB device (BSMon) properly


    means that the USB device (BSMon) is no longer responding to the PC


    means that the battery is not responding or not properly connected to the USB device (BSMon)

Right side: CBA status

  • a red mark means that the CBA Unit is disconnected and not communicating
  • a green mark means that CBA load is connected properly. In this case, additional status information are provided in bracket:
    • 0: the unit is idle
    • 1: the load is working, a test is running
    • 2: the test terminated naturally, the battery low voltage limit has been reached
    • 3: the test halted because the CBA unit overheated
    • 4: the test halted because terminated by the user or by other event (i.e. sudden battery cut-off)
    • 5: the unit is executing a command and is temporarily unavailable


To understand how to connect the battery, please refer to the Installation section.

To troubleshoot connection problem, refer to the Troubleshooting section.