ROUTe:OPEN:ABUS
Syntax
ROUTe:OPEN:ABUS [{<abus>|ALL}]
Description
This command opens all connections to the specified Analog Bus in all eight slots. Alternately by specifying the "ALL" parameter, this command opens all connections to all four Analog Buses on all installed modules (see exceptions below).
Used With:
34921A through 34925A Multiplexer Modules
34931A through 34933A Matrix Modules
Parameters
|
Name |
Type |
Range of Values |
Default Value |
|
<abus> |
Discrete |
{1-4|ABUS1-ABUS4|ALL} |
ALL (open connections to all four Analog Buses on all modules) |
Remarks
The following rules apply while an active scan is running on the multiplexer modules (i.e., an INITiate, MEASure?, or READ? command has been issued):
If "ABUS1" or "ABUS2" is specified, this command opens the corresponding relays (all slots) provided that the Analog Bus is not involved in an active scan. If the specified Analog Bus is involved in an active scan, an error will be generated and no relays will be opened.
If "ABUS3" or "ABUS4" is specified, this command opens the corresponding relays (all slots). Note that these Analog Buses are not used for scanning.
If "ALL" is specified, this command opens all four Analog Bus relays (all slots) provided that an active scan is not in progress. If the instrument is currently scanning, an error will be generated and no relays will be opened.
If there is a Monitor operation in progress (see ROUTe:MONitor[:CHANnel] command) that will be impacted by opening the specified Analog Bus relays, monitoring will be turned off and the Analog Bus relay will open.
Modules that do not have access to the Analog Buses are not effected by this command.
This command has no effect on the internal DMM's Analog Bus relays.
Examples
The following command opens all connections to Analog Bus 2.
ROUT:OPEN:ABUS 2 or ROUT:OPEN:ABUS ABUS2
The following command opens all connections to all four Analog Buses on all modules installed in the 34980A.
ROUT:OPEN:ABUS ALL