Cypress Chameleon CTM-15X Manual de usuario descargar pdf (Pagina 5)

5 Commands for PAD operation

x = 2 start up UDP PAD client mode - one session. The modem

will revert to command mode once the connection is closed.

x = 3 start up TCP PAD client mode - one session. The modem will

revert to command mode once the connection is closed.

x = 4 start up persistent UDP PAD client mode

x = 5 start up persistent TCP PAD client mode

cmd padip iii.iii.iii.iii For server mode use 0.0.0.0 (this is the modem’s default). For

client mode use the IP address of the server modem, or if the

host device will initiate the connection keep this as 0.0.0.0

cmd padport xxxxx For PAD mode 0 or 1 (server modes), xxxxx is equal to the

modem’s PAD listening port. For all other PAD modes (client

modes), xxxxx is equal to the port of the server modem. In PAD

mode 0 or 1, when used as a client the modem will transmit to

this port and then listen on this port when it reverts to server

mode.

cmd padfwdc x This is the PAD forwarding character. It defines which Hex value

or ASCII character (in decimal) will initiate the encapsulation and

transmission process. The default is ASCII character 13 (carriage

return). If your protocol always ends a “sentence” with the same

terminating character then it can be set here. If no forwarding

character is required set this to x = 0. If x = 0, padfwdt or padfwdl

will invoke sending the packet.

cmd padfwdl x This is the PAD forwarding length (default x = 40). It defines how

many characters will initiate the encapsulation and transmission

process. Generally this parameter is set to a value greater than

the longest “sentence” in your protocol. If no forwarding length

is required set this to maximum (1000). If x = 0 is specified then

every character is sent immediately.

cmd padfwdt x This is the PAD forwarding time in 50 ms increments. It defines

the time after receiving the last character in a “sentence” that

the encapsulation and transmission process will be initiated. If

every character is required to be sent immediately then set n = 0.

cmd padecho x If the connected device requires every character it sends to the

modem to be echoed back on the serial port then set n = 1.

Otherwise, set n = 0 to disable the echo feature.

cmd padsvct n [c] The n parameter sets the server connect timeout in seconds

(default n = 15). The c parameter (optional) sets the maximum

PAD connection timer in seconds (default c = 0, disabled). If the

modem is configured using cmd padmode 0/1, it starts as a client

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Cypress Chameleon CTM-15X Manual de usuario Pagina 5