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]? (@<chan nel>) 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