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8 system libraries from the syslibs23 range, System libraries from the syslibs23 range, General information – Lenze PLC Designer Migration PLC Designer (R2-x)-PLC Designer (R3-x) User Manual

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Lenze · PLC Designer | Migration of V2.x projects · 1.2 EN - 02/2013

15

General information

System libraries from the SysLibs23 range

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5.8

System libraries from the SysLibs23 range

Libraries that have been transmitted (due to reasons of compatibility) from the »PLC Designer« V2

to version 3, may respond differently than under V2.

Example: SysFileOpen with Mode = a (append) does not create a file under 3.x (unless availab-

le). The »PLC Designer« V2.3 creates this file.

Remedy: The use of the functions must be adapted manually (after the conversion) on an in-

dividual basis.

Note!

Import of variables of a »PLC Designer« V2.3 project into the »PLC Designer« V3

• The declarations of the Retain variables remain stored (and have an unchanged same

effect).

• The declarations of persistent variables must be revised and re-created. Create an

own global variable in the »PLC Designer« V3!

• An "AT Declaration" must not be used in combination with VAR RETAIN or VAR

PERSISTENT

!

• The size of the provided memory area in the »PLC Designer« V3 depends on the target

system. If required, adapt the number and value of the retain variables!