Campbell Scientific TX312 High Data Rate GOES Transmitter - Manual (Page 87)

Appendix G. Extended ASCII Command Set
G-15
G.5.2 Read Number of Bytes in the Self-Timed Transmission
Buffer
Syntax:
TML
Access level: USER
TX312 State: Enabled/Disabled
Returns the number of bytes stored in the timed transmission buffer.
G.5.3 Read the Maximum Self-Timed Message Length
Syntax:
MTML
Access level: USER
TX312 State: Enabled
Returns the maximum number of bytes that can be transmitted with the current
timed transmission bit rate, window length and preamble type.
G.5.4 Clear Self-Timed Transmission Buffer
Syntax:
CTB
Access level: USER
TX312 State: Enabled/Disabled
Clears the timed transmission buffer.
G.5.5 Load Random Transmission Buffer
Syntax:
RDT =xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Access level: USER
TX312 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
(e.g. 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.
Loading data into the Random transmission buffer, triggers the random
reporting sequence. Once triggered, the random reporting mechanism will
send the data loaded in the buffer for the number of transmissions as specified