Siemens SIMATIC MV500 Operating Manual page 45

"Filter" parameter
Different input boxes are displayed, depending on the set value. These are described below.
"Filter = Position": "Start position" and "Length" input boxes
These two input boxes are enabled when you select the value "Position" in the "Filter" drop-
down list.
You decide the properties of the substring to be included: The substring consists of as many
characters as you specify in the "Length" input box and starts at the character with the
number you set in the "Start position" input box.
Table 5- 25
Menu command
or parameter
Start position
Length
Example:
Read code = 1PABCDEF, Start position = 3, Length = 2
The output is: QB
"Filter = ID": "Separators" and "Filter ID" input boxes
These two input boxes are enabled when you select the value "ID" in the "Filter" drop-down
list.
For the selection "GS1", see input box "Filter ID".
In the "Filter ID" input box, you enter one or more IDs separated by one (and one only) of the
separators of the "Separators" input box. For each ID contained in "Filter ID", an attempt is
made to form a substring from the read code according to the following rules:
● The substring start is identified by the ID. If several substrings are identified by the ID,
only the first one is used.
● The ID can be at the beginning of the read code or immediately following one of the
separators in the "Separators" box.
● The substring extends as far as the next separator from the "Separators" input box or to
the end of the code if there are no separators from the "Separators" box.
The substrings found are then put together in the order in which the IDs occur in "Filter ID".
They are separated by the same separator as the corresponding IDs in "Filter ID".
Max. 4 separators are supported.
Example:
Read code = A+1P01234+1R01235-1Q01236; Separators = +-/_; FILTER-ID = 1P_1Q/1R
The output is: 01234_01236/01235
SIMATIC MV500
Operating Manual, 05/2019, C79000-G8976-C495-02
"Start position" and "Length" input boxes
Value range Default
1 ... 3000 1
1 ... 2048 1
Description
Index of the first character of the substring
Length of the substring
Application
5.1 Program
45