trying SCRIPTIS but debugger is flaky so VS Code got the shot once again.

    error = ProxiLAB.Reader.ISO14443.SendTclCommand(0x00, 0x00, TxBuffer, RxBuffer)
    if (error[0]):
        print("Tcl: {0}".format(ProxiLAB.GetErrorInfo(error[0])))
        PopMsg += "Tcl: {0}".format(ProxiLAB.GetErrorInfo(error[0])) + "\n"
    else:
        print("Tcl response: " + ''.join(["0x%02X " % x for x in RxBuffer.value]))
        PopMsg +=  "Tcl response: " + ''.join(["0x%02X " % x for x in RxBuffer.value]) + "\n"

Tcl response: 0x6A 0x86