Abridged Command List - Stanford Research Systems SR570 User Manual

Abridged RS-232 Command List
Command Syntax
All RS232 commands consist of four letter codes, followed in most cases, by an integer value (n). Commands
must end with a carriage return and linefeed <CR><LF>.
The SR570 RS232 interface is configured as listen only, 9600 baud DCE, 8 data bits, no parity, 2 stop bits,
and is optically isolated to prevent any noise or grounding problems.
Sensitivity control commands
SENS n Sets the sensitivity of the amplifier. n ranges from 0 (1 pA/V) to 27 (1 mA/V).
SUCM n Sets the sensitivity cal mode. 0 = cal, 1 = uncal.
SUCV n Sets the uncalibrated sensitivity vernier. [0
Input Offset Current control commands
IOON n Turns the input offset current on (n=1) or off (n=0).
IOLV n Sets the calibrated input offset current level. n ranges from 0 (1 pA) to 29 (5 mA).
IOSN n Sets the input offset current sign. 0 = neg, 1 = pos.
IOUC n Sets the input offset cal mode. 0 = cal, 1 = uncal.
IOUV n Sets the uncalibrated input offset vernier. [-1000
Bias Voltage control commands
BSON n Turns the bias voltage on (n=1) or off (n=0).
BSLV n Sets the bias voltage level in the range. [-5000
Filter control commands
FLTT n Sets the filter type. 0=6 HP, 1=12 HP, 2=6 BP, 3=6 LP, 4=12 LP, and 5=none.
LFRQ n Sets the value of the lowpass filter 3dB point. n ranges from 0 (0.03Hz) to 15 (1 MHz).
HFRQ n Sets the value of the highpass filter 3dB point. n ranges from 0 (0.03Hz) to 11 (10 kHz).
ROLD Resets the filter capacitors to clear an overload condition.
Other commands
GNMD n Sets the gain mode of the amplifier. 0=low noise, 1=high bw, 2=low drift.
INVT n Sets the signal invert sense. 0=non-inverted, 1=inverted.
BLNK n Blanks the front end output of the amplifier. 0=no blank, 1=blank.
*RST Resets the amplifier to the default settings.
≤ ≤
n 100] (percent of full scale).
≤ ≤
n +1000] (0 - ±100.0% of full scale).
≤ ≤
n +5000] (-5.000 V to +5.000 V).
x