Measurement Computing Analyzer488 - Manual (Page 50)

Section 3 Front Panel Operation
3.4
and hexadecimal format , or in binary format. -
MESSAGE- also shows ASCII data and if the record
memory location has been used. If hexadecimal format
is used, the IEEE 488 bus command and hexadecimal
value are shown. If binary format is used, the state of
each data line is shown with a
1 if asserted, and a 0 if
unasserted. Flashing digits mean that the actual state of
the data lines is different from the driven state. See
paragraph 3.7 for examples.
MESSAGE
Hexadecimal format
LAG20 34
Binary format
00110100
ASCII data
'!'
Not recorded
empty
LSB The Least Significant Bit marker, LSB, shows the least
significant bit of binary data when binary data format is
selected.
EOI The EOI digit indicates the actual state of the End or
Identify (EOI) bus management line. It does not
necessarily indicate the driven state. A
¼
indicates that
the line is asserted, blank means that the line is
unasserted.
ATN The ATN digit indicates the actual state of the Attention
(ATN) bus management line. It does not necessarily
indicate the driven state. A
¼
indicates that the line is
asserted, blank means that the line is unasserted.
SRQ The SRQ digit indicates the actual state of the Service
Request (SRQ) bus management line. It does not
necessarily indicate the driven state. A
¼
indicates that
the line is asserted, blank means that the line is
unasserted.
REN The REN digit indicates the actual state of the Remote