Campbell Scientific TX320 Transmitter - Manual (Page 73)

Appendix F. Extended ASCII Command Set
timed transmission, the data will not be included in the current transmission but
will be buffered for the next interval.
F.4.2 Read Number of Bytes in the Self-Timed Transmission
Buffer
Syntax:
TML
Access level: USER
TX320 State: Enabled/Disabled
Returns the number of bytes stored in the timed transmission buffer.
F.4.3 Read the Maximum Self-Timed Message Length
Syntax:
MTML
Access level: USER
TX320 State: Enabled
Returns the maximum number of bytes that can be transmitted with the current
timed transmission bit rate, window length, and preamble type.
F.4.4 Clear Self-Timed Transmission Buffer
Syntax:
CTB
Access level: USER
TX320 State: Enabled/Disabled
Clears the timed transmission buffer.
F.4.5 Load Random Transmission Buffer
Syntax:
RDT =xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Access level: USER
TX320 State: Enabled
This command overwrites the GOES Random Buffer with the data provided.
The G5 transmitter will insert the 31 bit GOES ID, any header information (for
example, HDR Flag byte), and append the EOT so these should not be included
in the RDT data. If the random data format is pseudo binary the transmitter
will also insert the correct parity bit for each message character and replace
illegal characters with the character specified by the IRC=c command before
transmission.
Characters that have meaning for the command interface (CR, LF, BS,
ESC,’~’) must be preceded by a ‘~’ character if they appear in the message
data.
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