Yokogawa PC-Based MX100 - Manual (Page 596)

12-32
IM MX190-01E
CDAQMX100::getDataFIFO
Syntax
int getDataFIFO(int fifoNo, int * bComm);
Parameters
fifoNo Specify the FIFO number.
bComm Specify the return destination where the communication will or will
not occur.
Description
Retrieves the measured data of the specified FIFO number.
Increments the current index of various kinds of information for each channel of the
data member.
When no stored data exists, communication is opened and new data is retrieved.
Gets FIFO values by FIFO, and stores them in the data member.
Returns the Boolean value indicating whether or not the communication was actually
carried out if the return destination is specified.
Return value
Returns an error number.
Error:
Not Data
Various kinds of information fields for each channel do not exist.
Reference
getChData getClassMXDataBuffer getFIFODataNo getTimeData
nextFIFO searchChNo talkFIFOData
CDAQMXDataBuffer::create
CDAQMXDataBuffer::setDataInfo
CDAQMXDataBuffer::setDateTime
CDAQMXStatus::isDataNo
CDAQMX100::getDataNum
Syntax
int getDataNum(int fifoNo);
Parameters
fifoNo Specify the FIFO number.
Description
Gets all types of information fields for each channel of the data member in the
remaining number of data of the specified FIFO number.
Returns the minimum value of the channels in the FIFO.
Returns 0 if it does not exist.
Return value
Returns the remaining number of data.
Reference
getClassMXDataBuffer
CDAQMXDataBuffer::getDataNum
12.4 Details of the MX100 Class