User's Manual

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For broadcasting messages to multiple modems, set the destination address to
255. In this case, the modem retransmits the message the number of times of the
Retransmission count plus 1, and then it will return “P0”.
In case the global addressing command is issued to plural modems connected by
RS485 multi-dropping interface, the transmission stops when any modem outputs
“P0”, “N2” or “N3” response to the RS485 line.
Example
>@TXR100002HELLO CR/LF : transmits HELLO from station 001 to station 002 through
repeater 100
<P1 CR/LF : data being transmitted
<P2 CR/LF : data packet reached to repeater
<P0 CR/LF : data transmission succeeded
Notes
Set the message length to 255 byte or less. The message length exceeding 255
byte will be command error.
When the same character as the terminator (CR/LF) is contained in a message, the
modem distinguishes it as the end of a command and ignore the subsequent data. In
such a case, use TBR command.
In broadcast transmission, the receiving result of the destination station cannot
be confirmed at the sender side.
TXT Transmit Text Data
Syntax
TXT [destination address]{Local Station Address}[message]
destination address : address of destination station (000 to A23)
Local Station Address : local station address for 485 mode (000 to A22).
message : any text data (255 or less)
Response
P0 : data transmission succeeded
P1 : command accepted, data being transmitted
N0 : command error (Except 485 mode)
N1 : data transmission failed - no response from the destination station
N2 : data transmission failed - destination station is in the reception disabled state
N3 : data transmission failed – destination station cannot receive because its receive
buffer is full.
Function
Transmits text data in the packet transmission mode.
Any message length between 1 to 255 bytes is accepted. The completion of data
input is recognized by the terminator (CR/LF).
For broadcasting messages to multiple modems, set the destination address to
255. In this case, the modem will retransmit the message the number of times of
the Retransmission count plus 1, and then it will return “P0”.
In case the global addressing command is issued to plural modems connected by
RS485 multi-dropping interface, the transmission stops when any modem outputs
“P0”, “N2” or “N3” response to the RS485 line.
Example
>@TXT002HELLO CR/LF : transmits HELLO from station 001 to station 002
<P1 CR/LF : data being transmitted