Siemens SIMATIC S7-1200 System Manual page 1032

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12.6 Standard Web pages

Be aware of the following issues when using the standard Tag status page:

• Enclose all string modifications in single quotes.

• The Tag status page can monitor and modify tags that contain any of the following

characters: &, <, (, +, ,(comma), ., [, ], $, or %, providing you enclose the tag name in

double quotation marks, for example, "Clock_2.5Hz".

• To monitor or modify just one field of a DTL tag, include the field in the Address, for

example, "Data_block_1".DTL_tag.Year. Enter an integer value for the modify value

according to the data type of the specific field of the DTL. For example, the Year field is a

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

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

status page, you can enclose the tag name in double quotation marks. In most cases, the

page will then recognize the tag name.