Rockwell-automation Logix5000 Controllers ASCII Strings Programming Ma Uživatelský manuál stáhnout pdf (Strana 25)

Processing ASCII characters Chapter 2

You can extract and convert a value from an ASCII message that contains

multiple values. A message may look like the following example:

Rung A: Find and Convert a

Floating-Point Value

The FIND instruction locates characters within a string.

• The Source contains the string tag to search.

• The Result contains the location where the FIND instruction locates the

search value you specify.

The MID instruction identifies a group of characters within a string and places

them in their own string tag.

Decode an ASCII message

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Rockwell-automation Logix5000 Controllers ASCII Strings Programming Ma Uživatelský manuál Strana 25