IEC-Functions

(Still in developing)

In the main directory of TrySim there is a subdirectory. ‘IECFuncs’. That one contains preproduced functions which are needed to manipulate, compare and convert STRINGS, data formats and so on. In addition there are the headers of the functions which are in the Siemens-library ‘TI-S7 Converting Blocks’.

You will have to import these functions into your project and if nec. rename them with Project|Data Adding if the FC numbers collide with self programmed FCs.

Until now only a few of these functions are actually executed, most of them have only got the declaration. If you need some of these functions please ask us whether we have already finished them.

Already created IEC-functions:

SFB3 (TP) Time as Pulse

SFB4 (TON) On-delay

SFB5 (TOF) Off-delay

Already created TI-S7 functions

FC84 (ATT) Input for FIFO / LIFO

FC85 (FIFO) First In -> First Out

FC87 (LIFO) Last In -> First Out

See also:

Special Functions and -Function Blocks

PLC-Editor