Siemens SIMATIC NET CP 243-1, Руководство по эксплуатации

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Configuration
3.3 Configuring a CP 243-1 with STEP 7
CP 243-1
Operating Instructions, 03/2012, C79000-G8976-C244-02
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Authentication
CPs that use ESMTP with authentication support the following authentication methods:
●
PLAIN
● LOGIN
● CRAM−MD5
● DIGEST−MD5
In terms of authentication for communication between the CP and mail server, the following
situations are possible:
●
CP and mail server use authentication (same method)
Once the CP has established a connection to the mail server, the mail server sends a list
of the authentication methods it supports. The CP searches through the received list for
the supported authentication method. The authentication methods are searched for in the
order shown above. The first method found in the list is then used. The CP informs the
mail server of this.
The data required for authentication (user name and password) is generated by the
Micro/WIN wizard and stored in the file system of the CP when the configuration is
downloaded. The user name and password correspond to the login data at the mail
service provider.
If you do not specify a user name and password in the DB, there will be no
authentication.
● CP and mail server use authentication (different methods)
If the CP does not find a matching authentication method, it aborts the attempt to send
and generates a diagnostics message.
● The CP uses authentication, the mail server does not
If you use a CP that supports authentication and you want to work without authentication,
do not store a user name or password in the e-mail data block. In this situation, the CP
transfers data using SMTP.
● The mail server uses authentication, the CP does not
The mail server aborts the attempt to send.
Note
If you use authenticated e-mail, you can only specify one e-mail server.
To be able to use authentication for the e-mail server, select the check box in the dialog after
you have entered the e-mail address. The lower part of the dialog changes. Now enter the
address or the symbolic name of the SMTP server. If you address the SMTP server by
name, you will also need to specify the IP address of the DNS server. Although the number
of the port can be changed, it is normally 25. To complete your entries in the dialog, enter a
user name and password.