Plant Operation; Login - Siemens OZS164 SERIES WEB SERVER Commissioning Instructions

Notes

Login

Notes
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Siemens
Building Technologies
4.2

Plant operation

The user sends an SMS with set structure to the plant phone number (phone
number of SIM card set in web server). The web server sends a corresponding
reply SMS if authorization is ok.
Logging in to the web server starts a session. Access is only granted to the phone
number initiating the session until the session is ended. Each access from this
phone number extends the session. The session is finished either by timeout or
logoff.
• Setting values have "=" between data point text and value. ":" is used for display
values.
• The data point texts are sent in the set web server language and must be
queried in that language (Home > 0.5 OZS164.23 > Settings > SMS operation >
Language).
• The transmission protocol UCS-2 limits the lengths of text messages to
maximum 70 characters; GSM-7 to a maximum of 160 characters. The text
message is distributed to multiple SMS messages as needed.
• The transmission protocol GSM-7 supports only one limited character set (see
Section 6.1). Characters that cannot be transmitted are converted during
transmission to "¿" (upside down question mark).
4.2.1 Login
You must first log in to the web server if SMS operation is password-protected.
Sending a text message with valid password to the plant phone number triggers an
associated text message.
Transmission
Mobile phone  Web server Send SMS to plant phone number:
Web server  Mobile phone Receive SMS:
• "<>" are not part of the entry.
• An asterisk shows: Password to follow.
• As password letters and numbers but no special characers are allowed.
• Data can be queried together with login by entering the required command
following the password (see Section 4.2.2).
• After successful login, access to the plant is limited to the phone number dialing
until the session times out or is terminated via logoff.
• No confirmation is sent on wrong passwords to avoid costs associated with
misuse.
Web server
SMS operation
Message
*<Password>
e .g. *1234
L ogin OK
CE1C5711en
25.08.2010