46 RF Multiplexer Command Reference
Chapter 4
Common Commands Quick Reference
The following table lists the IEEE 488.2 Common (*) Commands that can be executed by the RF Multiplexer
module. The operation of some of these commands is described in Chapter 3 of this manual. For more
information on Common Commands, see the appropriate command module user’s guide or the ANSI/IEEE
Standard 488.2-1987.
Command
Title
Description
*CLS
Clear status register
Clears all Event Registers, the Request for OPC flag, and all
Queues (except output queue).
*ESE<mask>
Event status enable
Sets bits in the Event Status Enable Register.
*ESE?
Event status enable query
Queries current contents in Event Status Enable Register.
*ESR?
Event status register query
Queries and clears contents in Standard Event Status
Register.
*IDN?
Identification query
Returns identification string of the switchbox.
*OPC
Operation complete
Sets the Request for OPC flag when all pending operations
have completed. Sets OPC bit in Standard Event Register.
*OPC?
Operation complete query
Returns a 1 to the output queue when all pending operations
have completed. Synchronize between multiple instruments.
*RCL<n>
Recall saved state
Recalls previously stored RF Multiplexer configuration.
<n>
(0 to 9) is the location in memory where the desired
(previously stored) set-up is located.
*RST
Reset
Connects channel 0 to COM 0 on all banks.
*SAV<n>
Save state
Stores the present RF Multiplexer configuration in memory.
Stores present settings of the channel states. <n> (0 to 9) is
location in memory where the current set-up is to be stored.
*SRE<mask>
Service request enable
Used to set the Service Request Enable Register bits and
corresponding Serial Poll Status Byte Register bits to
generate a service request.
*SRE?
Service request enable query
Query current contents in Service Request Enable Register.
*STB?
Read status byte query
Queries the current contents in the Status Byte Register.
*TRG
Trigger
Not applicable.
*TST?
Self-Test query
R0 if self test passes.
Rcc01 for firmware error.
Rcc02 for bus error (communications problem with
card).
Rcc03 for bad ID information.
Rcc10 if an interrupt was expected but not received.
Rcc11 if the busy bit was not held
≈
9 to 17 msec.
*WAI
Wait to Continue
Halts execution of commands and queries until the No
Operation Pending message is true.
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