Programmable AC Source 6404/6408 User’s Manual
Query Syntax: *ESR?
Parameters: None
Return Parameters: <NR1>
Query Example: *ESR? returns the content of ESR.
*IDN?, Identification Query
Description: This query returns ASCII string which organized into four fields separated by
commas to identify the ac source.
Query Syntax: *IDN?
Parameters: None
Return Parameters:Field 1: Manufacturer
Field 2: Model
Field 3: Serial Number
Field 4: Firmware Level or equivalent
Query Example: *IDN?
Return Example: CHROMA ATE, 6404,0,A.00.01
*OPC, Operation Complete Command
Description: This command causes the ac source to set the OPC bit of Standard Event
Status Register (ESR) when all pending operations are completed.
Syntax: *OPC
Parameters: None
*OPC?,Operation Complete Query
Description: This query returns an ASCII “1” when all pending operations are completed.
Query Syntax: *OPC?
Parameters: None
Return Parameters: 1
*RST, RESET COMMAND
Description: This command resets the ac source to the following states:
OUTP OFF
CURR:PEAK MAX
FREQ 60
VOLT 0
VOLT:EPR OFF
VOLT:LIM 300
VOLT:RANG 150
VOLT:RANG:AUTO OFF
Syntax: *RST
Parameters: None
*SRE, SERVICE REQUEST ENABLE COMMAND
Description: This command sets the content of the Service Request Enable register (SRE),
which determines which events of the Status Byte Register (STB) are allowed
to set the Master Status Summary (MSS) bit and the Request for Service
Summary (RQS) bit. If a bit is 1 in SRE and its associated event bit in STB
transitions to true, bit 6 of STB is then set true.
Syntax: *SRE <NRf>
Parameters: 0 to 255
Example: *SRE 16 enables the MAV bit event to set MSS and RQS bit.
Query Syntax: *SRE?
Return Parameters: <NR1>
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