
U90 Ladder Software Manual
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In order to use this feature, you must connect an SMS-enabled M90 model to a GSM
modem, which is sometimes called a cellular IP modem. Other modems do not support
connection to a cellular network.
SMS messaging is subject to all of the limitations of normal cellular network use, as for
example network availability.
Note that SMS messages are limited to the English character set.
Overview of M90 SMS messaging
To enable the M90 to use SMS messaging, you must:
1. Create the SMS phone book, which determines where the M90 can send SMS
messages.
2. Create SMS messages.
3. Configure the SMS Message Properties for each SMS message.
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