CARLO GAVAZZI WM4-96 - PROGRAMMING Manual de usuario descargar pdf (Pagina 55)

CARLO GAVAZZI

CONTROLS

SERIAL COMMUNICATION PROTOCOL

WM4-96

V1 R3

Page

7.4 MODEM CONFIGURATION

Both an analogue modem and a GSM one are to be interfaced respecting the following conditions:

• Transparent working mode, 9600 bps, no parity, 1 stop bit.

• Automatic answer after 3 rings (only for analogue modems).

• Carrier Detect (CD) control signal activated.

• Flow control deactivated.

To configure the modem (both analogue and GSM):

• connect the modem to the PC RS232 serial port using a “pin to pin” serial cable;

• launch Hyperterminal software.

• send to the modem the relevant AT commands (please refer to the modem manual).

7.5 AT COMMANDS FOR MODEM CONFIGURATION

56K FaxModem by U.S. Robotics:

• ATS0=3

• AT&N6

• AT&U6

• AT&I0

• AT&H0

• AT&K0

• AT&C1

• AT&D0

• AT&Y1

• AT&W1

GSM TC35i Terminal Modem by Siemens:

• ATS0=3

• AT\Q0

• AT&C1

• AT&D0

• AT&S1

• AT+CBST=7,0,1

• AT+CMGF=1

• AT+CMGS=1

• AT&W0

7.6 GSM MODEM COMMUNICATION

To enable the communication via GSM modem, WM4 serial port is to be opportunely set (menu

serial output/RS232/GSM).

The communication from/to WM4 via GSM modem is performed using the SMS messaging, both in

active and passive working mode.

GSM modem is to be equipped with a SIM CARD whose P.I.N. is to be previously disabled (for

example Vodafone Omnitel rechargeable Fax/modem Internet Card).

Gross Automation (877) 268-3700 · www.carlogavazzisales.com · [email protected]

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