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Toolbox 32 User Manual 1.47d www.cse-semaphore.com/mykingfisher

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Remaining Online

To remain online after connection, set On Line Inactivity to 0 and Hang Up After to 0 in both RTUs in the

PSTN link. If the line is disconnected, the RTU will reconnect when the next TX or RX message is initiated

from ladder logic.

Init String: (0-29 characters) These characters are sent to the modem to initialise it after startup, after

disconnection and if a dial attempt fails. The default initialisation strings for each type of modem can be

obtained by selecting the appropriate button below the Initialisation String field and are listed below.

Modem Default Initialisation String

3G Modem

(Maxon Modmax

MM-6280IND)

[blank]. The default string should be removed for the modem to function

correctly. Note: modem parameters must be set and saved in the modem

using a terminal program. Please see the topic Example - Modems.

External Modem or

GSM (eg. Banksia

modem or

Wavecom GSM)

AT&FTE0V0S0=2&W

V34-D Option

Board

AT&FTE0V0S0=2&W

X3 can be added to the above string if the modem is unable to recognize the

dial tone or is experiencing problems establishing a connection ie.

AT&FTE0V0S0=2X3&W

V22-D Option Board

(superseded)

AT&FTE0V0S0=2&C1&W

&C1 = track DCD from remote

For this option board, the port baud rate should be set to 2400 bps (or lower).

LP-1 Falcom GSM

(superseded)

AT@|+CICB=0|+CBST=7|+DS=0|&W

LP-1 interprets the above string as separate AT commands as shown below:

ATE0%C0\N0S0=2&D2 <Enter>

AT+CICB=0 <Enter>

AT+CBST=7 <Enter>

AT+DS=0 <Enter>

AT&W

The @ character is replaced by E0%C0\N0S0=2&D2 by the LP-1 (this keeps

the initialisation string below the 29-character limit). &D2 allows the RTU to

hang up the GSM using DTR. +CICB=0|+CBST=7|+DS=0 sets the GSM to

9600 baud data mode. The | character is replaced by a carriage return and AT

by the LP-1.

Dialing A Paging Service: If experiencing problems, error correction may need to be disabled by including \N0 ie.

AT&FE0V0S0=2\N0&W. If experiencing problems when using an MC module and a Dial option board, the baudrate may

need to be limited to 9600 by including F8 in the initialisation string ie. AT&FE0V0S0=2F8&W. When using a recent Dial

option board, the RTU port baudrate may need to be set to 2400 baud. Older Dial option boards can use 9600 bps.