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Parker Automation Controller
Series PAC120
3. System Description
3.1 PAC
Parker PAC is a system of control I/O modules for interconnecting the process signals in an EtherCAT network.
Parker PAC consists of the Parker PAC controller, Parker PAC bus coupler and various Parker PACHC and PAC
I/O modules.
Parker PAC120 is a PLC equipped with a CODESYS V3 runtime system. It also supplies the system voltage to the
PAC modules directly connected to it.
The Parker PAC bus coupler converts the physical transfer technology (twisted pair) to LVDS (E-bus) and gener-
ates the system voltages required by the LVDS modules. The standard 100 Base Tx lines used for office network
communications connect to the one side, the Parker PACHC and PACIO modules for the process signals connect
to the other. This is how the Ethernet EtherCAT protocol is retained right through to the last I/O module.
PAC120 PLC
with I/O modules
3.2 Development Environment CODESYS V3.5
CODESYS is a software platform designed to handle many tasks of industrial automation technology. It is based
on the IEC 61131-3 programming system. The tool benefits users with integrated solutions tailored to their practi-
cal work and aimed at providing hands-on support with whatever job needs to be done.
CODESYS supports all five languages specified in IEC 61131-3 (International Electrotechnical Commission):
•
IL (Instruction List)
•
ST (Structured Text), based on PASCAL for structured programming
•
LD (Ladder Diagram)
•
FBD (Function Block Diagram)
•
SFC (Sequential Function Chart)
Apart from the standard IEC languages, the CODESYS also supports:
•
CFC (Continuous Function Chart) is a FD (function diagram) editor with a fully configurable graphical layout:
whereas FD editors are network-based and automatically arrange the function blocks, CFC lets users place
the blocks anywhere such that feedback effects can be created without any temporary variables. This feature
makes the language the perfect choice for creating an overview of the application.
Fieldbus technology
The CODESYS programming system allows the direct configuration of the CANopen and EtherCAT fieldbuses. Pro-
tocol stacks can be separately installed as CODESYS libraries for some systems.
CODESYS Control
CODESYS Control is a soft PLC runtime system installed in the PAC120 and adapted to its hardware. It turns the
PAC120 into an industrial controller in conformity with IEC 61131-3. This runtime system also features some extra
functions that let the controller communicate with other components in its automation environment.
Visualisation
An editor integrated in the CODESYS programming system allows users to create complex visualisation screens
and to animate them by means of the application variables. The appropriate visualisation elements are provided by
the software. Once created, the screens may help to test an application or to start it up in the programming sys-
tem's online mode, for example. Running the optional visualisation clients CODESYS HMI and CODESYS WebVi-
su makes the screens a means of operating the machine or system.
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System Description
PAC bus coupler with I/O modules
PAC120 5715-719UK.indd 05.06.20
Parker Automation Controller
Series PAC120
4 Product Description
4.1 PAC120
PAC120 is an ARM-based mini-IPC plus CODESYS PLC which is programmed by means of CODESYS V3.
Its SD card slot plus USB port provide a local storage volume for process and other data and the interchange of
control programs. A digital interrupt input allows the controller to immediately respond to process events. On one
side of the modular control unit, there is an E-bus connector which provides for a flexible extension by Parker Ether-
CAT control and I/O modules series PACHC and PACIO.
One way of exchanging data with other systems is to go through the on-board interfaces, i.e. Industrial Ethernet
and RS232. Another way is to plug in interface and bus modules to provide further communication links and to fa-
cilitate system integration in existing control architectures. Using an extender module enables to actuate external
EtherCAT slaves.
Properties
•
Fanless ARM processor technology
•
Expandable by Parker PACHC modules
•
CODESYS V3 with EtherCAT®
•
Optional CODESYS WebVisu
4.2 Contents of package
The PAC120 package includes:
•
PAC120
•
Set of connectors (RS232/CAN and supply voltage/DI)
4.3 Intended Use
PAC120 is a mini-IPC and a CODESYS PLC providing EtherCAT master functions for modules series PACHC and
PACIO I/O which allow process signals to be directly attached to the control unit.
Place of installation
The unit is solely permitted for use in fully enclosed control cubicles or rooms. Exhaust heat develops down the
side of unit, i.e. at the aluminium heat sink. Verify that the place of installation is ventilated properly.
Caution
Damage to the unit
Choosing the wrong place of installation may cause damage to the unit.
à Check section Technical Data for the admissible ambient conditions and the unit's mounting position.
Design constraints for high-risk activities
The products licenced and supplied by Microsoft are not fault tolerant and have neither been designed nor man-
ufactured for applications requiring faultless operation during which a failure of the licenced product would cause
fatality, serious personal injury or serious material or environmental damage ("high-risk activities").
DANGER
Danger caused by malfunctions
Fatality, serious personal injury or serious material or environmental damage
à Do not use products licenced by Microsoft for applications requiring faultless operation during which a failure of the licenced
product would cause fatality, serious personal injury or serious material or environmental damage.
PAC120 5715-719UK.indd 05.06.20
Product Description
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