Keithley 6517A User Manual

IEEE-488 Reference
3-76
Figure 3-19
ASCII data format
±1234.567E±00NVDC,09:21:44.00,14-Sep-1994,±01234rdg#,400extchan,±0025.0Cexttemp,+065.3hum,±0010.000Vsrc
Reading Time Stamp*
Reading
Number
Channel
Number
External
Temp
Relative
Humidity (%)
V-Source
(Operate)
Exponent
Units:
VDC = Volts
ADC = Amps
OHM = Ohms
OHMCM (Volume)
OHMSQ (Surface)
%/V (Voltage coefficient)
COUL = Coulombs
Status:
N = Normal
Z = Zero Check Enabled
O = Overflow
U = Underflow
R = Reference (Rel)
L = Out of Limit
Time Date Units
000 = No Channel
001 to 400 = Channel number
Units:
extchan = External Channel
intchan = Internal Channel
Units:
C = °C
F = °F
K = K
Units Units
* Real time clock timestamp shown
Figure 3-20
IEEE754 single precision data format (32 data bits)
Byte 1
70
Header
# 0
Byte 2
70
Byte 3
70
Byte 4
70
se f
s = sign bit (0 = positive, 1 = negative)
e = exponent bits (8)
f = fraction bits (23)
Normal byte order shown. For swapped byte order,
bytes sent in reverse order: Header, Byte 4, Byte 3,
Byte 2, Byte 1.
The Header is only sent once for each measurement conversion.

Keithley 6517A Specifications

General

Brand	Keithley
Model	6517A
Category	Measuring Instruments
Language	English