User manual

Section 13: Instrument Control Library (ICL) Series 3700 System Switch/Multimeter Reference Manual
13-146 3700S-901-01 Rev. C / July 2008
dmm.makebuffer()
Details
Once a buffer is created, the attributes are:
mybuffer.appendmode = 1 (ON) or 0 (OFF) – default 0 over a bus interface,
but 1 for ones created on the front panel
mybuffer.basetimeseconds returns the seconds for reading buffer entry 1
(read-only attribute).
mybuffer.basetimefractional returns the seconds and fractional
seconds for reading buffer entry 1 (read-only attribute).
mybuffer.capacity for overall buffer size
mybuffer.collecttimestamps = 1(ON) or 0(OFF) – default 1
mybuffer.collectchannels = 1(ON) or 0(OFF) – default 1
mybuffer.n for number of readings stored in buffer currently
mybuffer.timestampresolution returns the resolution of the time
stamping (read-only attribute).
The following buffer bits indicate buffer statuses:
dmm.buffer.LIMIT1_LOW_BIT or 1
dmm.buffer.LIMIT1_HIGH_BIT or 2
dmm.buffer.LIMIT2_LOW_BIT or 4
dmm.buffer.LIMIT2_HIGH_BIT or 8
dmm.buffer.MEAS_OVERFLOW_BIT or 64
dmm.buffer.MEAS_CONNECT_QUESTION_BIT or 128
Details,
continued
To see readings in buffer:
printbuffer(x, y, mybuffer)
x and y: represent reading numbers desired
To see readings, channels, and units:
printbuffer(x, y, mybuffer, mybuffer.channels,
mybuffer.units)
x and y: represent reading numbers desired
To see time stamps in buffer:
mybuffer.collecttimestamps = 1
print(x, y, mybuffer, mybuffer.timestamps)
x and y: represent readings and time stamps for elements x to y
To see seconds, fractional seconds, and relative time stamps,
mybuffer.collecttimestamps = 1
printbuffer(x,y, mybuffer.seconds)
printbuffer(x,y, mybuffer.fractionalseconds)
printbuffer(x,y, mybuffer.relativetimestamps)