User`s manual

90 Agilent E8462A Relay Multiplexer Command Reference
20067 closes channel 67 of card #2.
[ROUTe:]CLOSe?
[ROUTe:]CLOSe? <channel_list> Returns the current state of the channel(s)
queried. Channel_list has the form (@ccbnnn) (see
[ROUTe:]CLOSe for definition).
The command returns "1" if channel(s) are closed or returns "0" if channel(s) are
open.
Comments Query is Firmware Readback: The ROUTe:CLOSe? command returns the current
firmware state of the channel(s) specified. It does not account for relay hardware
failures. A maximum of 128 channels at a time can be queried for any switchbox.
To query all the channels in the WIRE1 mode requires at least two queries (e.g.,
10000:10127 and 10128:10255).
Example Query Channel Closure
This example closes channel 0 in card 01, and channel 67 in card 02 of a two-module
switchbox and queries channel closure. Since the channels are programmed to be
closed "1,1" is returned.
CLOS (@10000,20067)
10000 closes channel 0, card #1, and
20067 closes channel 67, card #2.
CLOS? (@10000,20067)
Query state of channel 0, card #1; and
channel 67, card #2.
[ROUTe:]FUNCtion
[ROUTe:]FUNCtion <card_number>, <function> Selects the operating mode of the
multiplexer channels. All channels on the card specified by card_number operate in
the specified mode.
ROUTe: is NOT optional when ROUT:FUNC is used with a
scanning multimeter configuration.
Parameters
Comments
Defaults to WIRE2 mode: This command is required if you want to set a
configuration other than 2-wire.
ROUTe: is Not Always Optional: If used with a scanning multimeter configuration,
ROUTe:FUNCtion must be used.
Using the
FUNCtion Command: Using the FUNCtion command to reconfigure the
multiplexer, the command must be sent EACH TIME the card is powered up.
Parameter
Name
Parameter
Type Range of Values
Default
Value
card_number
numeric 01 to 99 N/A
function
discrete WIRE1|WIRE2|WIRE3|WIRE4|
WIRE1X2|WIRE2X2|WIRE4X2|
WIRE1X4|WIRE2X4|WIRE4X4
WIRE1X8|WIRE2X8|NONE
WIRE2