Siemens S7-200PLC Bedienungsanleitung PDF herunterladen (Seite 13)

Chapter

Enter a Topic Name: A, B or C. The topic must have been configured in the IO server page

(see § 5.1 Step 1 - Configuring the IO Server).

Type: DataType of the tag allows you to select under which format the eWON will store and

display the variable of the tag (Floating Point, Boolean, Integer, Dword or Automatic). All tags are

stored on 4 bytes. The default Automatic option lets the eWON decide the format depending on

the IO Server register/modifier type.

The remaining fields are usually left with their default value:

Force Read Only: Unchecked is the default. When it is checked, users will

not be able to write a value by using the Update command in the View IO page.

However, the tag remains read/write for commands written in the embedded

BASIC program.

eWON value: Defaults are *1+0. Applies a scale factor and an offset to the

raw value coming from the IO server. The scale factor and offset are float

values. Negative values are accepted.

TAGval = IOSERVERval * scale factor + offset.

3. Click on the Add/Update Only button when your tag configuration is complete

4. If everything is OK, your new tag appears in the tag list:

If not, here are a couple of examples of error messages that can appear:

Tag name empty: check tag name field and type name in it.

Polling Data Registers from Siemens S7-200 PLC Series (How to) Page 13/21

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Keine Kommentare

Siemens S7-200PLC Bedienungsanleitung Seite 13