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APPENDIX A BIDIRECTIONAL COMMUNICATION
Bidirectional communication command divides into 3 kinds: QP output command, input command, setting
command.
Note: Communication command will be available only in status mode or measurement mode.
1.1 Outputting Commands
Following commands are used in sending data from instrument to computer, relative data format will be sent with
commands, “ ” means space (20H)
·
When “Check sum” in “Communication parameters setting” is set to “ON”, there are 2 bytes check sum added in
the output data.
Sending command and outputting data
Output command is send from computer to instrument
.
Instrument Computer
OK
NG
C
o
m
p
u
te
r
Computer
Check sum
S
en
d o
u
tput
c
o
m
m
an
d
Well-received
D
ata output
(Check sum
inside)
N
o
rm
al
d
ata
p
ro
ce
ss
in
g
Bad-received
No output
