Unihedron SQM-LU-DL, Operator'S Manual

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8 Commands and responses
The SQM-LU-DL accepts a sequence of characters as a command, then executes those commands and usually provides a
response of a sequence of characters. The following details are useful when programming your own interface to send data
to and receive data from the SQM-LU-DL.
8.1 Commands
Commands consist of a string of characters. The first character is the command type. The following is a list of the
“Standard” commands:
Table 8.1: Summary of standard commands
Command Description
rx
Reading request.
cx
Calibration information request.
ix
Unit information request (note lower case “i”).
zcalAx
Arm Light Calibration command.
zcalBx
Arm Dark Calibration command.
zcalDx
Disarm Calibration command.
zcal5
Manually Set Light Calibration Offset.
zcal6
Manually Set Light Calibration Temperature.
zcal7
Manually Set Dark Calibration Time Period.
zcal8
Manually Set Dark Calibration Temperature.
0x19
Reset micro-controller. Hexadecimal value 19. See the “Firmware Upgrade” chapter
on page 93 for more details.
:
Intel Hex firmware upgrade initiation. See the “Firmware Upgrade” chapter on
page 93 for more details.
P...x
Set period (in seconds) for interval reporting to EEPROM and RAM for booting
and immediate use. Firmware feature=13.
p...x
Set period (in seconds) for interval reporting to RAM for immediate use. Firmware
feature=13.
T...x
Set threshold (in
mag
arcsec
2
) for interval reporting only to EEPROM and RAM for
booting and immediate use. Firmware feature
≥
13.
t...x
Set threshold (in
mag
arcsec
2
) for interval reporting only to RAM for immediate use.
Firmware feature
≥
13.
Ix
Request interval settings (note upper case “I”). Firmware feature
≥
13.
sx
Request reading of internal variables.
S...x
Simulate internal calculations.
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