Stanford Research Systems DS335, User Manual

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Abridged Command List ix
DS335 Synthesized Function Generator
Abridged Command List
Syntax
Variables i,j are integers. Variable x is a real number in integer, real, or exponential notation.
Commands which may be queried have a ? in parentheses (?) after the mnemonic. The ( ) are not sent.
Commands that may only be queried have a '?' after the mnemonic. Commands which may not be queried
have no '?'. Optional parameters are enclosed by {}.
Function Output Control Commands
AECL Sets the output amplitude/offset to ECL levels (1Vpp, -1.3V offset).
AMPL(?) x Sets the output amplitude to x. x is a value plus units indicator. The units can
be VP (Vpp), VR (Vrms). Example: AMPL 1.00VR sets 1.00 Vrms.
ATTL Sets the output amplitude/offset to TTL levels (5 Vpp, 2.5 V offset).
FREQ(?) x Sets the output frequency to x Hz.
FUNC(?) i Sets the output function. 0 = sine, 1 = square, 2 = triangle, 3 = ramp,
4 = noise.
INVT(?)i Sets the output inversion on (i=1) or off (i=0). Used with the ramp function.
KEYS(?) i Simulates a key press or reads the most recently pressed key.
OFFS(?)x Sets the output offset to x volts.
SYNC(?) i Turns the Sync output on (i=1) or off (i=0).
TERM(?) i Sets the output source impedance to 50
Ω
(i=0), Hi-Z (i=1).
Sweep control commands
FSEN(?) i Enables FSK on (i=1) or off (i=0). Valid only if SDIR2 is sent first.
*TRG Triggers single sweeps if in single trigger mode.
SDIR(?)i Sets the sweep direction 0 = Ramp, 1 = Triangle, 2 = FSK.
SPFR(?) x Sets the sweep stop frequency to x Hz.
SRAT(?) x Sets the sweep rate to x Hz.
STFR(?) x Sets the sweep start frequency to x Hz.
STYP(?) i Sets the sweep type. 0 = linear sweep, 1 = logarithmic sweep.
SWEN(?) i Turns sweeps on (i=1) or off (i=0).
TSRC(?) i Sets the trigger source for sweeps. 0 = single, 1 = internal sweep rate.
Setup Control Commands
*IDN? Returns the device identification.
*RCL i Recalls stored setting i.
*RST Clears instrument to default settings.
*SAV i Stores the current settings in storage location i.
Status Reporting Commands
*CLS Clears all status registers.
*ESE(?) j Sets/reads the standard status byte enable register.
*ESR? {j} Reads the standard status register, or just bit j of register.
*PSC(?) j Sets the power on status clear bit. This allows SRQ's on power up if desired.
*SRE(?) j Sets/reads the serial poll enable register.
*STB? {j} Reads the serial poll register, or just bit n of register.
STAT? {j} Reads the DDS status register, or just bit n of register.
DENA(?) j Sets/reads the DDS status enable register.