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APPENDIX B: 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 total station 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 sent from computer to total station
Instrument Computer
OK
NG
C
o
m
p
u
te
r
Computer
Check sum
S
en
d o
u
tp
u
t 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
