Ocean Optics SAD500 Communications and Control User Manual
Page 7
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Clear Memory
Description: Clears memory based upon the value specified. If slow memory is cleared, the current
operating parameters are written back to flash memory since the read and write pointers need to be
reinitialized. This process takes ~7 seconds. Clearing fast memory is immediate (<50us).
Command Syntax:
L{
DATA WORD
}
Value:
0 = Both fast and slow memory
1 = Fast memory
2 = Slow memory
Response:
ACK or NAK
Default value:
N/A
CAUTION: All stored spectra are lost when the clear memory command is executed.
Data Storage Mode
Description: Sets the data storage mode for future spectral acquisitions.
Command Syntax:
M{
DATA WORD
}
Value:
0 = Scans transmitted through the serial port
1 = Scans stored in fast memory
2 = Scans stored in slow memory
Response:
ACK or NAK
Default value:
0
Number of Scans to Store
Description: Sets the number of scans to be acquired and stored. If the Data Storage Mode (M) value is 0
(transmits the data immediately) then this parameter must be 1. If this condition is not true when the
Spectral Acquisition command (S) is sent, then an ETX is returned.
Command Syntax:
N{
DATA WORD
}
Response:
ACK or NAK
Range:
1 - 65535
Default value:
1
Scan Received OK
Description: Communicates whether or not the entire set of scan data was received successfully. If an O1
command is executed, the entire set of spectral data is re-transmitted. This optional feature can be utilized
only if no other command is issued between the Scan (S) command and this command.
Command Syntax:
O{
DATA WORD
}
Value:
0 = Data received OK – No action taken
1 = Data transmission in error – re-transmit the previous scan
Response:
ACK or NAK
Default value:
N/A