Step 7 Example Conveyor Program - Siemens SINAMICS G110D Operating Instructions Manual

Functions
6.11 Operation in fieldbus systems
6.11.1.5

Step 7 example conveyor program

Overview of example
This example, although not specific to the functionality of the SINAMICS G110D Inverter
gives an overview of the type of scripting that can be used to generally control a conveyor
system.
The Step 7 example shows the transfer of signal states utilizing block parameters. The
conveyor belt control is located in a function block and all inputs and outputs are routed
using block parameters, so that the function block can be used repeatedly.
All binary addresses that were inputs have become input parameters, all outputs have
become output parameters and all memory bits have become static local data. Names have
also been changed because only alphanumeric characters and the underscore are
permissible for block-local variables.
Main program
The structure of the main program allows the various functions that have been defined for
this application to be called easily and efficiently.
Basically it allows the conveyor belt to be moved; monitor the items on the conveyor and
their position and control the process over a number of conveyor segments.
The main program is given in the figure below.
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Operating Instructions, 07/2016, FW V3.63, A5E36768472B AB
SINAMICS G110D