Denso QK11-U User Manual page 31

Control Commands
Issuing commands from PC, etc. allows you to set the read status and read codes.
Command/response communication format
Controlling with commands
Command Response
Z (Note 1) None
R (Note 1) None
S OK/NG
LA OK/NG
LR OK/NG
LZ OK/NG
PW OK/NG
(Note 2)
VER Ver.n.nn
Note 1: Reading enable status when power is turned on.
Note 2: Do not turn power off until the OK/NG response is received after the PW
command has been transmitted.
Header Command
Standby for reading:
When QK11-U receives "Z" command, it will stop reading
and enter the reading standby status.
Start of reading:
When QK11-U receives "R" command, it will enter the
reading enable status and start to read codes.
To specify the codes to be read (see the table below for
parameters)
Automatically controls on/off of illumination LED.
Always turns illumination LED on during reading operation
(turns it off in reading standby status).
Always turns illumination LED off.
Stores in flash memory the status designated by control
command. Without this command, the status set by a
command will be reset whenever power is turned off.
To confirm version
19
Terminator
Content
n.nn: Version No.