Common Commands¶

*IDN?¶

Syntax	*IDN?
Description	Query the ID string of the instrument
Parameter	None
Explanation	The query returns a colon-separated four-field ASCII string. The first field contains the manufacturer name, the second field is the product name, the third field is the device serial number, and the fourth field is the product revision number
Return Format	<Arbitrary ASCII String>
Example	-> *IDN? <- DEWETRON,OXYGEN,0,2.5.0

Syntax	*VER?
Description	Query the software and SCPI interface version string
Parameter	None
Explanation	The query returns the version information for the relevant parts. The SCPI version, the RC_SCPI plugin version and the OXYGEN version is mandatory and always reported
Return Format	<Character>,<String>[,<Character>,<String>]…
Example	-> *VER? <- SCPI,"1999.0",RC_SCPI,"1.10",OXYGEN,"5.1.1"

Syntax	*CLS
Description	Clears the standard event register, extended event register, and error queue
Parameter	None
Explanation	If the *CLS command is located immediately after the program message terminator, the output queue is also cleared
Example	-> *CLS

Syntax

*ESE <num>

Description

Sets the standard event status enable register

Parameter

Name	Type	Range	Default
<num>	Integer	0 - 255	0

Explanation

Specify the value as a sum of decimal values of each bit
For example, specifying “*ESE 251” will cause the standard enable register to be set to “11111011”. In this case, bit 2 of the standard event register is disabled which means that bit 5 (ESB) of the status byte register is not set to 1, even if a “query error” occurs
A query using *ESE? will not clear the contents of the standard event enable register

Example

-> *ESE 251
-> *ESE?
<- 251

Syntax	*ESE?
Description	Queries the current setting of the standard event status enable register
Parameter	None
Explanation	The query returns the content of the standard event status enable register
Return Format	<NR1>
Example	-> ESE 251 -> ESE? <- 251

Syntax	*ESR?
Description	Queries the standard event status register and clears the register
Parameter	None
Explanation	A sum of decimal values of each bit is returned You can check what type of events occurred when an SRQ is generated For example, if a value of “32” is returned, this indicates that the standard event register is set to “00100000.” In this case, you can see that the SRQ occurred due to a “command syntax error.” A query using *ESR? will clear the contents of the standard event register
Return Format	<NR1>
Example	-> *ESR? <- 32

Syntax	*OPC
Description	Sets bit 0 (OPC bit) of the standard event register to 1 upon the completion of the specified overlap command
Parameter	None
Explanation	Currently all operations are non-overlapped.OPC sets the OPC bit and OPC? returns the state of the OPC bit
Example	-> OPC -> OPC? <- 1

Syntax	*OPC?
Description	Queries the state of specified overlapped command
Parameter	None
Explanation	Currently all operations are non-overlapped.*OPC sets the OPC bit
Return Format	<Boolean>
Example	-> OPC -> OPC? <- 1

Syntax	*RST
Description	Initializes the device to default settings
Parameter	None
Explanation	Ejects all open data files and switches to live mode Stops the recording Restarts the acquisition Clears the event queue Resets all settings except communication settings to factory default values
Example	-> *RST

Syntax

*SRE <num>

Description

Sets the service request enable register

Parameter

Name	Type	Range	Default
<num>	Integer	0 - 255	0

Explanation

Specify the value as a sum of decimal values of each bit
For example, specifying “SRE 239” will cause the *service request enable register to be set to “11101111.” In this case, bit 4 of the service request enable register is disabled which means that bit 4 (MAV) of the status byte register is not set to 1, even if “the output queue is not empty”.
Bit 6 (MSS) of the status byte register is the MSS bit itself, and therefore, is ignored
A query using *SRE? will not clear the contents of the service request enable register

Example

-> *SRE 239
-> *SRE?
<- 175

Syntax	*SRE?
Description	Queries the current setting of the service request enable register
Parameter	None
Explanation	The query returns the content of the service request enable register
Return Format	<NR1>
Example	-> SRE 239 -> SRE? <- 175

Syntax	*STB?
Description	Queries the status byte register
Parameter	None
Explanation	The query returns the content of the status byte register. Bits 0, 1, 3, 4 and 7 Not used (always 0) Bit 2 EAV (Error Available) Set to 1 when the error queue is not empty. In other words, this bit is set to 1 when an error occurs. See the page 7-9. Bit 5 ESB (Event Summary Bit) Set to 0 when the logical product of the standard event register and the corresponding enable register is 1. In other words, this bit is set to 1, when an event takes place inside the instrument. Bit 6 RQS (Request Service)/MSS (Master Status Summary) Set to 1 when the logical AND of the status byte excluding Bit 6 and the service request enable register is not 0. In other words, this bit is set to 1 when the instrument is requesting service from the controller. RQS is set to 1 when the MSS bit changes from 0 to 1, and cleared when serial polling is carried out or when the MSS bit changes to 0.
Return Format	<NR1>
Example	-> *STB? <- 4

Syntax	*TST?
Description	Performs a self-test and queries the result
Parameter	None
Explanation	Currently a self-test is not defined and this query is no-op.
Return Format	<NR1>
Example	-> *TST? <- 0

Syntax	*WAI
Description	Holds the subsequent command until the completion of the asynchronous operation
Parameter	None
Explanation	Currently all operations are synchronous operations
Example	-> *WAI