Bnc 1201 - 6 1/2 Digit Digital Multimeter Uživatelský manuál stáhnout pdf (Strana 173)

174

if (PviOpenDefaultRM_usb == NULL ||

PviFindRsrc_usb == NULL ||

PviClose_usb == NULL ||

PviOpen_usb == NULL ||

PviWrite_usb == NULL ||

PviRead_usb == NULL ||

PviSetAttribute_usb == NULL

)

{

FreeLibrary (hUSBTMCLIB);

hUSBTMCLIB = NULL;

MessageBox(NULL, "NIVISA for USBTMC library not ready.", "1201

multimeter device test", MB_OK);

return;

}

printf("\n ###### Start C++ Example program. ######\n");

printf(" We check the 1201 multimeter on USB port and\n");

printf(" identify the first connected 1201 device.\n\n");

// Open Device -- Resource Manager

status = PviOpenDefaultRM_usb(&m_defaultRM_usbtmc);

if (status < 0L)

{

PviClose_usb(m_defaultRM_usbtmc);

hUSBTMCLIB = NULL;

m_defaultRM_usbtmc = 0;

MessageBox(NULL, "USBTMC resource not found.", "1201 multimeter

device test", MB_OK);

return;

}

else

{

// Find the USBTMC device USB[0-9]*::0x1698::0x083F::?*INSTR

( Hex )

status = PviFindRsrc_usb (m_defaultRM_usbtmc,

"USB[0-9]*::0x164E::0x0FA3::?*INSTR", &m_findList_usbtmc, &m_nCount,

1 2 ... 168 169 170 171 172 173 174 175 176 177

Žádné komentáře

Bnc 1201 - 6 1/2 Digit Digital Multimeter Uživatelský manuál Strana 173