6 acquiring measurement results, Acquiring measurement results – KEYENCE LJ-V7000 Series User Manual
Page 37
37
LJ-V7000_COM_RM_E
9.2.6 Acquiring measurement results
For communication devices, see "9.2.9.1 Communication devices".
Get measurement results
Get profiles (operation mode "high-speed (profile only)")
Format
LONG LJV7IF_GetMeasurementValue(LONG lDeviceId,
LJV7IF_MEASURE_DATA* pMeasureData);
Parameters
lDeviceId(in)
Specifies the communication device to communicate with.
pMeasureData(out)
This buffer stores the data for all 16 OUTs including the OUTs that are not
measuring.
The host requires the passing of a buffer LJV7IF_MEASURE_DATA[16] in
size.
Return value
0x8080: The operation mode is "high-speed (profile only)"
Explanation
This function gets the newest measurement results (measurement values and
judgment results). All measurements, including OUT measurements where the
measurement mode is set to "do not measure" are acquired.
Supported version
1.00
Format
LONG LJV7IF_GetProfile(LONG lDeviceId, LJV7IF_GET_PROFILE_REQ* pReq,
LJV7IF_GET_PROFILE_RSP* pRsp, LJV7IF_PROFILE_INFO* pProfileInfo,
DWORD* pdwProfileData, DWORD dwDataSize);
Parameters
lDeviceId(in)
Specifies the communication device to communicate with.
pReq(in)
Specifies the position, etc., of the profiles to get.
For each member, see "8 Constant, Structure Definitions".
pRsp(out)
Indicates the position, etc., of the profiles that were actually acquired.
For each member, see "8 Constant, Structure Definitions".
pProfileInfo(out)
The profile information for the acquired profiles.
For each member, see "8 Constant, Structure Definitions".
pdwProfileData (out)
The buffer to get the profile data.
The profile data is stored in this buffer with "LJV7IF_PROFILE_HEADER -
signed 32-bit profile data - LJV7IF_PROFILE_FOOTER" as a single unit of
profile data, and only the number of profiles that could be acquired are
returned.
dwDataSize(in)
pdwProfileData size in BYTEs
Return value
0x8080:
The operation mode is "advanced (with OUT measurement)"
0x8081:
"Batch measurements on and profile compression (time axis) off"
0x80A0:
No profile data
Explanation
This function gets profile data.
Profile data is stored in 0.01 μm units.
For the details on the data stored in the profile data (storage order and size), see
There is a limit to the number of profiles that can be read at once. This limit
depends on the measurement settings. Refer to byGetProfCnt (the number of
profiles read this time) in pRsp, and confirm that the data you wish to acquire
has all been acquired. If it could not be acquired, specify the following in this
function to acquire the remaining data:
byPosMode in pReq = LJV7IF_PROFILE_POS_SPEC
dwGetProfNo in pReq = dwGetTopProfNo in pRsp + byGetProfCnt in pRsp
(Specify the profile data to be read as the next profile data after the profile data
that was read this time)
Supported version
1.00