
L-INX/L-GATE User Manual
69
LOYTEC
LOYTEC electronics GmbH
8 IEC 61131
– L-LOGICAD
To design the IEC61131 program which should run on the L-INX device, the graphical
programming tool logiCAD is required. The tool allows creating IEC61131 programs using
various IEC61131 programming languages. It offers additional features downloading and
debugging of the created program.
In addition to logiCAD, the L-INX Configurator necessary to create an appropriate data point
configuration in the automation server. The usage of logiCAD itself is beyond the scope of
this manual. Please refer to the logiCAD online help in case of additional questions.
8.1 Overview
The PLC in the L-INX device is intended to perform IEC61131 programs operating on
IEC61131 data points. The operating principle is to connect IEC61131 data points to data
points derived from CEA-709, BACnet or LIOB network. Figure 49 depicts the usage of data
points for IEC61131 programs at the example of using CEA-709 network variables.
CEA-709
variables
IEC61131 program
CEA-709
variables
Input NVs
DP
DP
Output NVs
IEC61131
variables
IEC61131
variables
Figure 49 Usage of data points.
Alternatively, data points can also be directly exposed as IEC61131 variables. The data points
provide a PLC check box for this purpose. In this use case, not special IEC61131 data points
are created and no connections are necessary.
8.2 Installing logiCAD
For developing IEC61131 programs with logiCAD the following components must be
installed:
1.
L-logiCAD setup package. This package installs the logiCAD software, which is needed
to design PLC programs for the L-INX device.
2.
L-INX Configurator. This software is required to configure the L-INX device to provide
the necessary data points to the PLC and integrate the device into the network.
3.
logiCAD license for using logiCAD on the PC. The license is available as a softlock
version or as a hardlock version with a USB dongle. On virtual machines it is mandatory
to use the hardlock license. How to obtain and install the license is described in this
Section.
The L-logiCAD installer installs the IEC61131 programming environment logiCAD and all
L-INX related software packages. These packages include the template project for the LINX,