Jadak Photo Research SpectraScan PR-7 Series, Руководство пользователя

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Appendix 1
– Remote Control Mode
126
Setup
Command
Description
SW
1, 2
Internal ND Filter
The PR-788 has an internal neutral density (ND) filter, which can be used to attenuate the
signal the instrument reads.
Syntax : SWn[CR]
Where : n = ND mode
0 = No ND filter
1 = ND filter on
99 = Auto ND
-1 = returns current state of ND
Response : 0000[CR][LF] If all OK, else
NNNN[CR][LF] (NNNN = Error code)
1
PR-788 ONLY
2
The user must actively manage ND mode and state when changing exposure modes (i.e. setting a fixed
sets ND mode to fixed). To return to Auto ND, it must be explicitly set AFTER setting AutoExposure.
M
EASUREMENT AND
D
ATA
S
END
C
ODES
Measurement and Data Send Codes are used to measure ( M Command) and then specify returned data or
acquire values without making a measurement ( D command).
Either a D or an M can precede any of the following codes. For example, M1 or D1
– M602 or D602
. If an M
command is sent, a measurement will always be made even if the Data Code does not request measured values.
For example, if
M116 is sent to the instrument, a measurement is made then a list of accessories is returned from
the instrument.
In the following table, qqqqq is the returned error code. If qqqqq is all zeros (00000) no error has occurred
during the request. All other values for qqqqq relate to an error condition. Refer to the Remote Mode Error Code
section of the manual for a complete list of error codes and their meanings.
UUUU in the output format is the photometric unit type of the measurement per the following table:
Type Code Units
Luminance 0 fL cd/m²
Illuminance 1 fc lux
Luminous Intensity 2 mcd
Luminous Flux 3 lumens
TABLE 7 - PHOTOMETRIC UNITS CODES
Note: Both qqqqq and UUUU are contained in every output and are not annotated below.
All data fields are fixed length (except where otherwise noted) and comma delimited. Commas also serve as
placeholders for empty fields.