Web Server - Siemens SIMATIC S7-1500 Function Manual

①
"Name"
In the "Name" text box, enter the address of the tag whose behavior you want to monitor.
This may be a symbolic or absolute address.
● PLC tags (inputs and outputs, bit memories, times and counters) and DB tags in blocks
with standard access have an absolute and a symbolic address.
● DB tags in blocks with optimized access have a symbolic address and no absolute
address.
Example for access to the absolute address of a data block with standard access:
The absolute address consists of the preceding address ID %, the number of the data block
and the absolute address of the tags in the data block, separated by a period:
absolute addressing of the tags "DBX1.0" in the global data block "DB1".
Invalid entries are displayed in red font.
②
"Display format"
Using the drop-down list box, select the desired display format of the respective variable. If
the tag cannot be displayed in the desired format, it will be displayed in hexadecimal format.
③
"Value"
Under "Value", the value of the corresponding operand is displayed in the selected format.
④
"Modify value"
You can change the value of tags and write them to the CPU in this column. To transfer
several changed values in one operation, click the "Apply" button below the table.
To be able to read values and write values to the CPU, you need to have configured a user
with the appropriate access rights in STEP 7.
If the value you entered is not valid (e.g. binary value in a BOOL field), the entry is not
applied and the corresponding input field remains empty. A specific message relating to this
is not output.
You can change the values of the following data types:
● Bool, Byte
● DWord, LWord, Word
● Int, DInt, LInt, SInt, UDInt, UInt, ULInt, USInt
● Real, LReal
● LDT
● Counter, Date
● Time, LTime, Time_Of_Day, LTime_Of_Day, Timer
● S5Time
● Char, WChar, String
Note
The following generally applies: To be able to write data, the "Referrer" transfer must be
activated in your Web browser (this is the default in all common browsers).

Web server

Function Manual, 11/2019, A5E03484625-AG
Web pages
3.10 Tag status
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%DB1.DBX1.0
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