Plc Tags - Siemens SIMATIC S7-1500 Function Manual

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3.8 User pages

3.8.1.1

PLC tags

User pages can read PLC tags from the CPU and write data to the CPU.

To do so, PLC tags must:

● be enclosed by double quotation marks ("...").

● also be enclosed by single quotation marks ('" ... "') or with quotation marks masked with

● be specified by a PLC tag name.

● identify, if the PLC tag name includes the characters \ (backslash) or ', these characters

● be enclosed with single quotation marks ('...'), if an absolute address (input, output, bit

Reading PLC tags

These out tags (output direction as seen from the controller) are inserted at any place in the

HTML text with the syntax described below.

Syntax

:=<Varname>:

<Varname> corresponds to the tag to be read from your STEP 7 project and can be a simple

shared tag or a complete tag path to a structure element. Make sure that you use the name

of the data block and not its number when you use data blocks.

Examples

:="Conveying speed": :="My_datablock".bitmemory1:

:=I0.0:

:=MW100:

a backslash ("\" ... "\").

with the escape sequence \\ or \' as normal characters of the PLC tag name.

memory) is used in the AWP command.

Function Manual, 01/2013, A5E03484625-01

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