Srq; Byte; Self Test; Spd - Keithley 775A Instruction Manual

Bit
Number
B5
B4 B3 B2 B1
BO OSB)
:
Command
Error
Ready
Reading
Done
0
Self-Test
Done
Overflow
MO
No No No
No No
Ml
No
No
No No
Yes
M2 No
No
N'o Yes
No
M3
No No
No
Yes
Yes
M8 No No
Yes
No
No
M9
No No
Yes
No
Yes
1
MIO
No
No
Yes
Yes
No
Mil
No
No
Yes
Yes
Yes
M16
No
Yes
No No No
M17
No
Yes
No No
Yes
M18
No
Yes
No
Yes
No
M19
No
Yes
No
Yes Yes
!
M24
No
Yes Yes
Mo No
M25
No
Yes Yes
No
Yfes
?
M26 No
Yes Yes Yes
No
[
M27
Ko
Yes Yes Yes Yes
M32
Yes
No No
No
No
j
M33
Yes
N.-)
No
No
Yfe®
!
M34
Yes
No
No
Yes
No
M35
Yes
Mo
No
Yes
Yfes
1
M40
Yes
No
Yes
No No
M41
Yes
No
Yes
No
Yes
M42
Yes
No
Yes Yes
No
M43
Yes
No
Yes
Yes Yes
i
M48
Yes Yes
No No No
1
M49
Yes
Yes
No
No
Yqs
M50
Yes Yes
No
Yes
No
M51
Yes Yes
No
Yes
Yes
M56
Yes Yes
Ye,s
No No
M57
Yes
Yes
Yes
No
Yes
MSB
Yes Yes Yes Ybs
No
M59
Yes
Yes Yes Yes Yes
NOTE
There
are
32
legal
SRQ
mask commands
that are
possible
with
the
Model
775. Table 3-15
lists ali
combinations,
(e.g.
selecting
MIO,
Model
775
will
request service
after
one
reading
is
complete
or
a seif-test
occurs,)
Status Byte Format--rhe
status byte contains
inforniathjr!
relating to data
and
error cor\dltions
within
the
in.stn.iment,
Table 3-16
lists
the
meaning
of the various
bits,
The
status
byte
is
obtained by using
the
SPE,
SPD
polling
sequence
described
in
paragraph
3.9,8,