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Siemens TCP/IP Ethernet Driver Help

3. The bit range for Byte 1, Byte 2, Byte 3, and Byte 4 is 7-0.

Little Endian

DWord 1

Word 3 Word 1

9 8 7 6 5 4 3 2 1 0 1-

Byte 4 Byte 3 Byte 2 Byte 1

7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 -

Bits

1. The bit range for DWord 1 is 31-0.

2. The bit range for Word 3 and Word 1 is 15-0.

3. The bit range for Byte 4, Byte 3, Byte 2, and Byte 1 is 7-0.

Tag Import

The Tag Import dialog specifies the parameters needed for Automatic Tag Database Generation from a Siemens

STEP 7 project. Automatic Tag Database Generation is supported for Siemens S7-300 and S7-400 devices only.

To generate the tags that have been configured to be imported, open the Database Creation tab located in

Device Properties and then select Auto Create.

Note:

Tag import for the Siemens S7-300 and S7-400 devices have been qualified for use with projects created from

Siemens Simatic STEP 7 versions 5.3, 5.4, and 5.5.

Important:

Tag import for the Siemens TCP/IP Ethernet Driver supports tag names and comments in the native character set

as specified by the Windows code page in the Siemens STEP 7 project's language file. A missing, altered,

corrupt, or incorrect Siemens STEP 7 language file may cause tag names and comments to import incorrectly.

Utilizing the STEP 7 language-neutral option (which allows text to be entered in a different character set than

what is used in the STEP 7 language file) may also cause tag names and comments to import incorrectly. The

STEP 7 language file can be located in the Global sub-directory of the STEP 7 project root.

Note:

Automatic tag generation may result in the display of incorrect characters if the necessary language packs are

not installed on the system.

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