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5.3 System commands
The following commands can be used to control the MSE or read back
information.
Command syntax
Parameters
Purpose
:*CLS
None
Clear status
:*IDN?
None
Identification query
:*RST
None
Reset Command
:*STB?
None
Read Status Byte query
:*TST
None
Self-test query
:*FWD?
None
Firmware date query
:*FWT?
None
Firmware time query
:SYSTem:VERSion?
None
Get system version
information
:SYSTem:ERRor?
None
Retrieve the last occurred
error
:SYSTem:ERRor:NEXT?
None
Retrieve previous errors
Table 5 System commands.
The Status byte can be used to retrieve information about the status of a
command or the system. Return values of the status command can be
seen in the table below.
Code
Description
0
System is idle
1
Data is available
2
Command processed
4
Data in buffer (should not occur)
8
An error occurred Use “:SYSTem:ERRor?”
to get the exact error that occurred
Table 6 Status commands.
Note: The status and error commands should not be used in standard programs. They are
not necessary when programming has been done correctly. They are available in case a
problem occurs during development. The :*RST command is also not necessary in normal
programs. It is advised to use the :SENSe and :CONF commands in case the behaviour of
the MSE needs to be changed to its default settings.
5.4 Configuration commands
Configuration commands are used to set parameters of the MSE
colorimeter that are used by the measurement functions. The settings are
used globally by other measurement functions. The selected white
standard is used for dominant wavelength calculation. The integration time
setting can be varied from 0.1ms to 5s. It is specified in
μs. Results from
the MSE colorimeter include a clip and noise indication which indicate
whether the measured light is too bright (clip) or too low (noise). When
clipping is detected, the resulting colour will not be correct and a lower
integration time should be chosen. When noise is detected, a longer
integration time should be chosen, see table 7 on next page.
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