Keithley 6517B

Model 6517B Electrometer Reference Manual Appendix D: IEEE-488 bus overview
6517B-901-01 Rev. C / August 2015 D-11
Step Command ATN state
Data bus
ASCII Hex Decimal
1
2
3
4
UNL
LAG*
SDC
Set low
Stays low
Stays low
Returns high
?
;
EOT
3F
3B
04
63
59
4
*Assumes primary address = 27
Typical common command sequence
Step Command ATN state
Data bus
ASCII Hex Decimal
1
2
3
4
5
6
UNL
LAG*
Data
Data
Data
Data
Set low
Stays low
Set high
Stays high
Stays high
Stays high
?
;
*
R
S
T
3F
3B
2A
52
53
54
63
59
42
82
83
84
*Assumes primary address = 27