Biral SWS-100-LW: SWS-200-LW, User Manual

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Section 1 Sensor Set-up
STEP 4 – Configuration Options
9
To set this word, send command CO to enable changes and then command
OP00a0000b to set the Option Word as required. For example, send OP100000 to
enable the checksum with no date and time stamp.
Bit 1 (Date and Time Stamp enable) and Bit 6 (Checksum enable) are the only bits
which may be set to ‘1’by the user. All other bits MUST be left at ‘0’ for correct sensor
operation. The functions controlled by this byte are detailed in sections 1.4.2 to 1.4.3.
The Default setting = 00000000.
1.4.2 Date and Time Stamp in data string
By default the date and time stamp is not included at the start of the data string.
This is controlled by the Options Word setting; see Table 1-3 Options Word (lower
byte).
To enable Date and Time stamp
The sensor can be configured to generate messages with the date and time string by
setting the least significant bit in the options word:
Step 1 - Send the command: CO.
Step 2 - Send the command: OP1.
(Note: to enable checksum and time/date-stamp send OP100001).
PLEASE BE EXTREMELY CAREFUL IN SETTING THE CORRECT BIT IN STEP 2
AS SETTING THE WRONG BIT WILL RESULT IN THE SENSOR FUNCTIONING
INCORRECTLY
To check the setting of the options word, send the command: OP?
The sensor should respond: 00000000,00000001.
To disable Date and Time stamp
To disable the date and time stamp, send the command OP0 in step 2 above.
To read the current Date and Time
Send the command TR?
The sensor will respond with the date / time message e.g.:
FRIDAY ,19\12\14,13:15:25,179
Note: the final ‘179’ is a time calibration figure, set during final test.