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Parker Automation Controller
Series PAC120
4.5.3 USB Sticks
USB stick users should consider the following points:
• The USB port is mechanically designed to support up to 1,000 plug/unplug operations.
• Pulling off a USB stick during operation is allowed only when no more file operations are being performed. Fail-
ure to comply may render the USB stick useless!
• If a program still has a file open when the USB stick is pulled, you will find it impossible to close the directory
that the file belongs to. In this situation, the system will not respond to any file or directory operation requests
because it would be expected to read from a device that is no longer available. Therefore, before pulling off the
USB stick, you should always ensure that no program still has an open file loaded from the stick.
• Before pulling off the stick, always use the function USB_UMountDisk from the Parker System Library iMX6
• USB sticks can be found under the following path: \media\usbx (x = 1..n number of plugged USB sticks)
• Supported format(s): FAT32
4.5.4 Serial Communication RS-232 / CAN1
The CAN interface complies with standard ISO 11898 and supports baud rates of up to 1 Mbps. It is electrically
insulated.
Pin wiring RS 232 interface:
X8 RS 232 interface
Connector
Pin
Function
1
RXD
Weidmüller B2L
2
TXD
3,5/10/180LH
3
GND
SN BK BX SO
4
Shield
1338740000
5
Shield
NOTE
You may connect the CAN bus termination directly to the pins.
4.5.5 Digital Input and Power Supply
On-board power supply unit
The PAC Controller features an on-board power supply unit (PSU) designed for an input voltage of 24 VDC (18 V
... 32 V). The PSU is protected against reverse polarity. It supplies power to the PAC120's CPU core and to the
PACHC and PACIO modules connected to the E-bus. The modules themselves require their own power supply.
Verify that both the cord and the PSA are externally protected against short circuit and overload triggering at max.
10 A.
Pin wiring:
X9 24 VDC power supply
Connector
Pin
Function
1
Digital input
External power supply
Weidmüller
2
24 VDC (18 V ... 32 V)
3
External power supply, GND
16
Product Description
Pin wiring CAN interface:
X8 CAN interface
Connector
Pin
Function
6
CAN_H
Weidmüller B2L
7
CAN_L
3,5/10/180LH
8
CAN_GND
SN BK BX SO
9
CAN_H
1338740000
10
CAN_L
PAC120 5715-719UK.indd 05.06.20
Parker Automation Controller
Series PAC120
4.5.6 Functional Earth
Connect functional earth to the protective earth conductor of the switching cabinet or the system that the PC is in-
stalled in. Use the flat plug (6.3 mm x 0.8 mm) or the earth bolt at the back of the unit.
Verify that the cross section is not less than 2.5 mm
NOTE
A low-impedance earth conductor improves the dissipation of interference received via external power supply cables, signal ca-
bles or cables of peripheral units.
4.5.7 SD Card
PAC120 features a SD card slot at its front. The slot is marked with a SD icon.
The SD card slot has a push-in/push-out plug & eject mechanism. You may use a flat object to help you plug in or
eject the card.
The SD card can be found under the following path: \media\sd
Supported format(s): FAT32
CAUTION
Electrostatic discharge (ESD)
Inappropriate handling will destroy the memory card
à
SD cards are susceptible to electrostatic discharge (ESD). Please take account of the instructions on how to handle memo-
ry cards.
NOTE
The SD card slot has no hot-plug capability. It will therefore detect cards only if they were plugged in at the time of booting the
unit. You cannot swap SD cards in service.
4.6 Retain Variables
Run the Persistence Manager of the CODESYS Composer application to save remanent variables. Proceed as follows:
1. Run the Library Manager and add library "AC_Persistence" to both the project and the application.
2. Go to Modules and add the "PersistenceManager" as a top-level instance. The default view does not show the
Modules panel. To be able to see it, go to View -> Modules.
3. Now go to the PersistenceManager and define a PersistenceChannel.
4. In sub-module Data Storage, select a format to save the persistent variables in.
5. Prefix the following attribute to variables declared as remanent:
{attribute 'ac_persist' := 'PersistenceChannel'}
Check that the name (i.e. 'PersistenceChannel') is the same as the one you defined at step 3.
6. To generate the code, use Composer -> Create from the menu.
Look here to find detailed instructions:
https://help.codesys.com/webapp/f_application_composer_persistence_manager;product=core_Application_
Composer;version=3.5.11.0
NOTE
You should generally ask yourself whether keeping large volumes of retain data makes practical sense if your system is equipped
with a mass storage device.
PAC120 5715-719UK.indd 05.06.20
Product Description
2
. Try to keep the lead to the cabinet terminal as short as possible.
17
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