Schneider Electric TSXETG100 Manuale Utente Scaricare il pdf (Pagina 37)

Services

Opening a Serial Link Connection via Modem

Presentation A serial link connection via modem can be opened in one of the following ways:

l By request from a remote device (server mode)

l Or by email request from a module (client mode)

l Or by internal register command from a module (client mode)

PPP and PAP

Protocols

The connection uses PPP (Point-to-Point Protocol). With this protocol, once a

telephone connection has been established, the modem link is regarded at an

application level as a TCP/IP link.

With a PPP connection, the identification protocol is PAP (Password Authentication

Protocol). Any device with which the TSX ETG 1000 has a modem/PPP connection

should be configured with the PAP protocol. The CHAP protocol is not implemented

on the TSX ETG 1000.

In order for the connection to be accepted, you need to know the UserName and the

PAP Password for the remote device. Before connecting the TSX ETG 1000 to the

remote device, you must also configure the remote device to use the PAP protocol.

The password and the user name for the TSX ETG 1000 used by the PAP protocol

are the same as those for the HTTP server (default: USER/USER).

The modem connected to the TSX ETG 1000 must respond to AT commands in

ASCII mode.

Diagnostics for

the RS232

Modem Link

The PPP/Modem log file page on the HTTP server contains a log of the last four

connections.

Note: Client mode takes priority over server mode. If a remote device has

established communication with the module in server mode, the connection will be

closed by the TSX ETG 1000 if the module wishes to establish a connection to a

remote device in client mode.

Note: Specialist line mode is not supported.

Note: Modem service must not be used to support safety functions.

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Schneider Electric TSXETG100 Manuale Utente Pagina 37