Hi,

In the STEP 7 V14 has several instructions to strings manipulation.

For example, FIND finds characters in a character strings and REPLACE replaces part of a string with another string based in fixed position.

Combining FIND, REPLACE, LEAN and While instructions it is possible to build a block that substitutes a specified contends of a string for other one.

In the follow sample program, the matter “456” is searched in the original string “12345678901234567890” and exchanged for “abc” so that the result is “123aabc7890123abc7890”