Lenze EVS93xx CrossCutter - Manual (Page 12)

Cross Cutter
Preface and general information
Prepared Solution Servo PLC / ECSxA 1.1 EN 1-8
1.4.2 Programmable variant
The programmable variant supports the functional range of the parameterisable variant but also
allows the user to adapt the prepared solution program on the basis of IEC61131 (e.g. in
respect of the definition of interfaces, adaptation in the external signal flow, etc.) or to add more
user-specific program sections. This means that the prepared solution can be adapted
specifically to meet individual customer requirements. Furthermore, the resources of the target
platform can be put to optimum use without affecting core functionality.
= Internal program sections of the prepared solution
= Sections of the prepared solution which can be edited by the user
In the programmable variant, the user is entirely free to both configure the signal flow outside
the core function and change/adapt/expand existing program sections of the prepared solution
(e.g. error handling). The interface between program sections containing the core functionality
and between user program sections, as well as between system blocks, is provided by global
variables (similar to the technique used in software package templates). The meanings of the
global interface variables are listed in Chapter 6.1.
Note!
The core functionality of the prepared solution cannot be accessed by the user in either variant.
This is a deliberate feature designed to prevent malfunctions being programmed or monitoring
mechanisms disabled unintentionally.