Filter
Top Products
VT1422A Command Reference 299Chapter 7
INPut
INPut:FILTer[:LPASs][:STATe]
INPut:FILTer[:LPASs][:STATe] <enable>,(@<ch_list>) enables or disables a
programmable filter SCP or RSC channel. When disabled (<enable> = OFF), these
channels are in their "pass through" mode and provide only a 20 kHz, single-pole low
pass filter. When re-enabled (<enable> = ON), the SCP channel reverts to its
previously programmed setting.
Parameters
Comments • If the SCP has not yet been programmed, ON enables the SCP's default
cutoff frequency.
• For the VT1529A/B, this command affects an 8-channel bank, not a single channel.
• When Accepted: Not while INITiated
• *RST Condition: ON
• Send with VXIplug&play Function: hpe1422_cmd(...)
Usage INPUT:FILTER:STATE ON,(@115,117)
Channels 115 and 117 return to
previously set (or default) cutoff
frequency
INP:FILT OFF,(@10000:1131)
Set RSC channels 0000-0131 to
"pass-through" state
INPut:FILTer[:LPASs][:STATe]?
INPut:FILTer[LPASs][:STATe]? (@<channel>) returns the currently set state of
filtering for the specified channel. If the channel is not on an input SCP or RSC,
the query will return zero.
Parameters
Comments
• Returned Value: Numeric value either 0 (off or "pass-through") or 1 (on). The
data type is int16.
• The <channel> parameter must specify a single channel only.
• Send with VXIplug&play Function: hpe1422_cmdInt16_Q(...)
Usage INPUT:FILTER:LPASS:STATE? (@115)
Enter statement returns either 0 or 1
INP:FILT? (@12424)
check filter cut-off on RSC channel 2424
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
enable boolean (uint16) 1 | 0 | ON | OFF none
ch_list channel list (string) 100 - 15731 none
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
channel channel list (string) 100 - 15731 none