Ver.1.0
44
TXT (transmit text data)
[Format]
TXT (destination-address) (message)
- destination-address: 000 to 239
240 to 254 (for group communication)
255 (for broadcast transmission)
- message:
Arbitrary binary data (130 bytes or less)
[Response]
P0: Normal
end
P1:
Command is accepted and data are being transmitted
N0: Command
error
N1:
Data transmission is failed. (The radio modem at the destination address does not respond or
transmission cannot be started because of carrier sensing.)
[Function]
- This command orders the FDP03 to transmit text data.
- The length of message can be defined from 0 to 130 bytes and a delimiter indicates the end of message
data.
- To broadcast data to multiple radio modems, “destination address” should be defined to “255”. At this
setting, the sender FDP03 transmits data packet “re-transmission frequency” that is defined by REG11 + 1
times and then returns P1 and/or P0 response to the host according to the REG13 setting.
[Examples of use]
>@TXT001HELLO<Cr><Lf>: The FDP03 sends the message “HELLO” to the destination modem that
wireless address is “001” by this command.
<P1<Cr><Lf>:
This response indicates that the command is accepted and the data is being
transmitted.
<P0<Cr><Lf>:
This response indicates the normal end of command processing.
>@TXT002HELLO<Cr><Lf>: The FDP03 sends the message “HELLO” to the destination modem that
wireless address is “002” by this command.
<P1<Cr><Lf>:
This response indicates that the command is accepted and the data is being
transmitted.
<N1<Cr><Lf>:
This response indicates that transmission is failed because the destination
modem that wireless address is “002” did not respond or the data
transmission was not started by carrier sensing.
The length of message should be not more than 130 bytes. It becomes
command error if the length of message exceeds 130 bytes.
If the message includes "<Cr><Lf>," the FDP03 is recognizes that it is the
end of the message and it ignores following message. Thus, “TBN”
command should be used instead of “TXT” command if the message
contains “<Cr><Lf>”.
At broadcast transmission mode, the sender FDP03 cannot recognize
whether receiver FDP03s receive the transmitted data or not.
Do NOT execute next command before the sender FDP03 receives P0
response. If the setting is "Disabling response" and no P0 response is
sent to the sender FDP03, please wait expected P0 response time before
