Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 229)

daqDacWtMany
Also See: daqDacWt
Format
daqDacWtMany(handle, deviceTypes, chans, dataVals, count)
Purpose
daqDacWtMany sets the output values of multiple local or expansion DAC channels.
Parameter Summary
Parameter Type Description
handle DaqHandleT Handle to the device whose channel values will be updated
deviceTypes DaqDacDeviceType Pointer to an array which specifies the DAC types
chans PDWORD
Pointer to any array which specifies the DAC channels
dataVals PWORD Pointer to an array which gives a value to output to the
D/A channel
count DWORD Length of all the arrays
Parameter Values
handle: obtained from the daqOpen function
deviceTypes: see table below
chans: pointer to an array of output channel numbers; for channel number values, refer to the
deviceTypes table below
dataVals:
valid values range from 0 to 65,535
count: the total number of analog channels to output range from 1 to 512
Parameter Type Definitions
deviceType-(DaqDacDeviceType)
Definition chan Value Description
0 Output data value to DAC0
1 Output data value to DAC1
2 Output data value to DAC2
DddtLocal
3 Output data value to DAC3
N*4 + 0 Set output for channel0 on a DBK2 or DBK5 on bank N
N*4 + 0 Set output for channel1 on a DBK2 or DBK5 on bank N
N*4 + 0 Set output for channel2 on a DBK2 or DBK5 on bank N
DddtDbk
N*4 + 0 Set output for channel3 on a DBK2 or DBK5 on bank N
DddtLocalDigital NA The 16-bit P3 Digital port is not applicable for analog output operations
Returns
DerrInvDacVal Invalid data value
DerrNoError No error
For more details on error messages refer to the Daq Error Table.
Programmer’s Manual 908494 Daq API Command Reference 4.4-47