Yokogawa PC-Based MX100 - Manual (Page 347)

5-89
IM MX190-01E
Functions for the MX100 (Visual C/Visual Basic)
5
talkChDataMX [Visual C only]
Syntax
int talkChDataMX(DAQMX daqmx, int chNo, MXDataNo startDataNo,
MXDataNo endDataNo);
Parameters
daqmx Specify the device descriptor.
chNo Specify the channel number.
startDataNo Specify the start data number.
endDataNo Specify the end data number.
Description
Declares the retrieval of the measured data of the specified channel number.
• Specify the range to be retrieved using the start and end data numbers.
• When retrieving instantaneous values, specify the constant for “Data number for
specifying instantaneous values” for the start/end data number. Or, use the
talkChDataInstMX function.
• After executing this function, use the getTimeDataMX function to retrieve the data
times for all the data points. Then, use the getChDataMX function to retrieve the
measured data of all the data points.
• In Visual Basic, use the talkChDataVBMX function.
Return value
Returns an error number.
Error:
Not descriptor
No device descriptor.
Reference
CDAQMX::talkChData
5.1 Details of Functions - MX100 (Visual C/Visual Basic) -