User manual

2.3.50 AcqrsD1_configVertical
Purpose
Configures the vertical control parameters for a specified channel of the digitizer.
Parameters
Input
Name Type Description
instrumentID ViSession Instrument identifier
channel ViInt32 1...Nchan, or –1,… for the External Input
fullScale ViReal64 in Volts
offset ViReal64 in Volts
coupling ViInt32 = 0 Ground (Averagers ONLY)
= 1 DC, 1 MΩ
= 2 AC, 1 MΩ
= 3 DC, 50 Ω
= 4 AC, 50 Ω
bandwidth ViInt32 = 0 no bandwidth limit (default)
= 1 bandwidth limit at 25 MHz
= 2 bandwidth limit at 700 MHz
= 3 bandwidth limit at 200 MHz
= 4 bandwidth limit at 20 MHz
= 5 bandwidth limit at 35 MHz
Return Value
Name Type Description
status ViStatus Refer to Table 2-1 for error codes.
Discussion
For the DC440 and DP310 the coupling input is used to select the signal input: DC, 50 Ω for the Standard
input and AC, 50 Ω for the Direct HF input.
Some instruments have no bandwidth limiting capability. In this case, use bandwidth = 0. With channel = -
1 this function can be used to set the Full Scale Range and the bandwidth limit of the external trigger for the
DC271-FAMILY digitizers, the 10-bit-FAMILY, the AC/SC, and the AP240/AP235 signal analyzer
platforms. For the case of a 10-bit-FAMILY or DC271-FAMILY MultiInstrument using AS bus, the
external triggers of the additional modules are numbered –3, -5, … following the principles given in the
Programmer’s Guide section 3.17.2, Trigger Source Numbering with AS bus.
Programmer’s Reference Manual Page 99 of 210