Agilent Technologies 664xA Manuale Utente

 
 Meaning and Type
 Event Status Register      Device Status
 
 Description
 This query reads the Standard Event Status Event register.  Reading the register clears it.  The bit configuration of this
register is the same as the Standard Event Status Enable register (*ESE).  See "Chapter 4 - Status Reporting" for a detailed
explanation of this register.
 

 

(None)

 

(Register binary value)

 

 
 Meaning and Type
 Identification    System Interface
 
 Description
 This query requests the power supply to identify itself.  It returns a string composed of four fields separated by commas.
 

 

 

 

Manufacturer

 

4-digit model number followed by a letter

 

nnnnA-nnnnn

10-character serial number or 0

 

<R>.xx.xx

Revision levels of firmware

 

 

(None)

 
 Meaning and Type
 Operation Complete    Device Status
 
 Description
 This command causes the interface to set the OPC bit (bit 0) of the Standard Event Status register when the power supply
has completed all pending operations. (See *ESE for the bit configuration of the Standard Event Status register.) Pending
operations are complete when:

• 

All commands sent before *OPC have been executed.  This includes overlapped commands.  Most commands

are sequential and are completed before the next command is executed.  Overlapped commands are executed in
parallel with other commands.  Commands that affect output voltage, current or state, relays, and trigger actions are
overlapped with subsequent commands sent to the power supply.  The *OPC command provides notification that
all overlapped commands have been completed.

• 

Any change in the output level caused by previous commands has been completed (completion of settling

time, relay bounce, etc.)

• 

All triggered actions are completed

 *OPC does not prevent processing of subsequent commands, but Bit 0 will not be set until all pending operations are
completed.
 

 

(None)