Data Logs - Siemens SIMATIC S7 System Manual

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104BWeb server

11.2 Standard web pages

Limitations on the Variable Status page:

● The maximum number of variable entries per page is 50.

● The maximum number of characters for the URL corresponding to the Variable Status

● For the character display format, the page displays hexadecimal values if the actual CPU

If a tag name displays special characters such that it is rejected as an entry on the

Variable Status page, you can enclose the tag name in double quotation marks. In most

cases, the Variable Status page will then recognize the tag name.

Data Logs

The Data Logs page allows you to view or download a specified number of data log entries.

With the "admin" log in, you can also clear these entries after downloading them, or you can

delete them. The Web server downloads data logs to your PC in comma-separated values

(CSV) file format.

Time stamp for data logs are shown in system time and not in local time

The CPU writes the time stamps for the data log records in system time (Coordinated

Universal Time - UTC). The standard "Data Logs" page of the Web server displays the time

stamps for the data logs in system time.

page is 2083. You can see the URL that represents your current variable page in the

address bar of your browser.

values are not valid ASCII characters as interpreted by the browser.

S7-1200 Programmable controller

System Manual, 11/2011, A5E02486680-05

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Simatic s7-1200