Stanford Research Systems SR844 User Manual page 106

Rf lock-in amplifier
Table of Contents

Advertisement

4-4
Index of Commands
Data Storage
SRAT(?){i}
SEND(?){i}
TRIG
TSTR(?){i}
STRT
PAUS
REST
Data Transfer
OUTP?i
OUTR?ch
SNAP?i,j{,k,l,
m,n}
SPTS?
TRCA? ch,j,k
TRCB? ch,j,k
TRCL? ch,j,k
FAST(?){i}
STRD
Interface
*RST
PRST
*IDN?
LOCL(?){i}
OVRM(?){i}
Status
*CLS
*STB?[i]
*SRE(?)[i,]{j}
*ESR?[i]
*ESE(?)[i,]{j}
*PSC(?){i}
SR844 RF Lock-In Amplifier
4-24
Set (Query) the Data Sample Rate to 62.5 mHz (0) through 512 Hz (13)
or Trigger (14).
4-24
Set (Query) the End of Scan mode to One–Shot (0) or Loop (1).
4-24
Sample trigger command. Same as trigger input.
4-24
Set (Query) the Trigger Starts Scan mode to No (0) or Yes (1).
4-24
Start or continue a scan.
4-24
Pause during a scan. Does not reset a paused or done scan.
4-24
Reset the scan. All stored data is lost.
Query the value of X (1), Y (2), R[V] (3), R[dBm] (4) or θ (5).
4-25
4-25
Query the value of Display ch (1,2).
4-25
Query the value of 2 to 6 parameters simultaneously.
4-26
Query the number of points stored in the Display buffer.
4-26
Read k≥1 points starting at bin j≥0 from Display ch (1,2) buffer in
ASCII floating point.
4-26
Read k≥1 points starting at bin j≥0 from Display ch (1,2) buffer in
IEEE binary floating point.
4-27
Read k≥1 points starting at bin j≥0 from Display ch (1,2) buffer in
non-normalized binary floating point.
4-28
Set (Query) Fast Data Transfer mode to Off (0) or On(1). Fast mode
will transfer binary X and Y every sample during a scan over GPIB.
4-28
Start a Scan after 0.5 s delay. Use with Fast Data Transfer mode.
4-29
Reset the SR844 to its default configuration.
4-29
Power-On reset of SR844.
4-29
Read the SR844 device identification string.
4-29
Set (Query) the Local/Remote state to Local (0), Remote (1) or Local
Lockout (2).
4-29
Set (Query) the Override Remote mode to Off (0) or On (1).
4-30
Clear all status bytes.
4-30
Query the Serial Poll Status Byte. If i is included only bit i is queried.
4-30
*SREj sets the Serial Poll Enable Register to the decimal value j (0–
255). *SREi,j sets bit i (0–7) to j (0,1). *SRE? queries the
entire register. *SRE?i queries bit i.
4-30
Query the Standard Event Status Byte. If i is included only bit i is
queried.
4-30
*ESEj sets the Standard Event Status Enable Register to decimal value
j (0–255). *ESEi,j sets bit i (0–7) to j (0,1). *ESE? queries
the entire register. *ESE?i queries bit i.
4-30
Set (Query) the Power–On Status Clear bit to Set (1) or Clear (0).

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents