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E-13
Appendix E, ALPHABETICAL LISTING OF COMMANDS
OA[.] [n] Oscillator amplitude control
In fixed point mode n sets the oscillator amplitude in mV. The range of n is 0 to 5000
representing 0 to 5 V rms.
In floating point mode n sets the amplitude in volts.
OF[.] [n] Oscillator frequency control
In fixed point mode n sets the oscillator frequency in mHz. The range of n is 0 to
120,000,000 representing 0 to 120 kHz.
In floating point mode n sets the oscillator frequency in Hz. The range of n is 0 to
1.2E5.
PHA[.] Signal phase
In fixed point mode causes the lock-in amplifier to respond with the signal phase in
centidegrees, in the range ±18000.
In floating point mode causes the lock-in amplifier to respond with the signal phase in
degrees.
REFP[.] [n] Reference phase control
In fixed point mode n sets the phase in millidegrees in the range ±360000.
In floating point mode n sets the phase in degrees.
REMOTE [n] Remote only (front panel lock-out) control
Allowed values of n are 0 and 1. When n is equal to 1, the lock-in amplifier enters
remote only mode in which the front panel control functions are inoperative and the
instrument can only be controlled with the RS232 or the GPIB interfaces. When n is
equal to 0, the front panel control functions normally.
REV Report firmware revision
Causes the lock-in amplifier to respond with the firmware revision number. This gives
a four line response which the controlling program must be able to accept.