Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 240)

daqGetDeviceProperties
Format
daqGetDeviceProperties(daqName, deviceProps)
Purpose
daqGetDeviceProperties returns the properties for a specified device.
Parameter Summary
Parameter Type Description
daqName LPSTR Pointer to a character string representing the name of the
device for which to retrieve properties
deviceProps DaqDevicePropsT Pointer to the memory area for which to return the properties
of the device specified by daqName
Parameter Values
daqName: a pointer to a string of characters—no effective range of values applies
deviceProps: see table below
Parameter Type Definitions
deviceProps-(DaqDevicePropsT)
Definition Description Format
deviceType Main Chassis Device Type Definition DWORD
basePortAddress Port Address (ISA Address, LPT Port, etc) DWORD
dmaChannel DMA Channel (if applicable) DWORD
protocol Interface Protocol DWORD
alias Device Alias Name STRING
maxAdChannels Maximum A/D channels (with full expansion) DWORD
maxDaChannels Maximum D/A channels (with full expansion) DWORD
maxDigInputBits Maximum Dig. Inputs (with full expansion) DWORD
maxDigOutputBits Maximum Dig. Outputs (with full expansion) DWORD
maxCtrChannels Maximum Counter/Timers (with full expansion) DWORD
mainUnitAdChannels Maximum Main Unit A/D channels (no expansion) DWORD
mainUnitDaChannels Maximum Main Unit D/A channels (no expansion) DWORD
mainUnitDigInputBits Maximum Main Unit Digital Inputs (no expansion) DWORD
mainUnitDigOutputBits Maximum Main Unit Digital Outputs (no expansion) DWORD
mainUnitCtrChannels Maximum Main Unit Counter/Timer channels (no exp.) DWORD
adFifoSize A/D on-board FIFO Size DWORD
daFifoSize D/A on-board FIFO Size DWORD
adResolution Maximum A/D Converter Resolution DWORD
daResolution Maximum D/A Converter Resolution DWORD
adMinFreq Minimum A/D Conversion Scan Frequency (Hz) FLOAT
adMaxFreq Maximum A/D Conversion Scan Frequency (Hz) FLOAT
daMinFreq Minimum D/A Output Update Frequency (Hz) FLOAT
daMaxFreq Maximum D/A Output Update Frequency (Hz) FLOAT
If this function fails, make sure the daqName parameter references a valid device that is
currently configured. This can be checked via the Daq* Configuration applet located in the
Control Panel. Refer to the configuration section in your device’s user manual for more details.
Returns
DerrNoError No Error
4.5-10 Daq API Command Reference
908794
Programmer’s Manual