X2 base Panels Beijer Electronics Instruction Manual

X2 base Panels Beijer Electronics

Product Information

Specifications

• Model: X2 base 7 v2 HP
• Manufacturer: Beijer Electronics AB
• Part Number: MAEN330 2024-01
• Indoor Use Only
• Altitude: Up to 2,000 m
• Pollution Degree: 2
• No wet locations or areas with moisture

Product Usage Instructions

Safety Precautions

• Both the installer and users must read and understand the manual.
• Avoid exposure to hazardous materials like PCB, Pb, Hg, Cd, Cr6+, PBB, and PBDE.
• Follow disposal requirements under WEEE regulations for proper environmental handling.
• UL and cUL installation guidelines must be adhered to for indoor use only.

Installation

Space Requirements
Ensure adequate space for installation as per the provided guidelines.

Installation Process
Follow the step-by-step installation process outlined in the manual for proper setup.

Service and Maintenance
Follow these steps for cleaning the display:

1. Ensure the cloth is well-saturated.
2. Wipe the touch panel surface in a Z motion.
3. Dry the panel thoroughly with a dry cloth.
4. Avoid mixing bleach and ammonia for cleaning.
5. Avoid spraying cleaning solution directly onto the touch panel surface.

FAQ

Q: What should I do if I encounter hazardous materials during maintenance?
A: Contact a professional for proper handling and disposal of hazardous materials to ensure safety.

Foreword
All HMI panels are developed to satisfy the demands of human-machine communication. Built-in functions such as displaying and controlling text, dynamic indication, time channels, alarm, and recipe handling are included. The HMI panel works primarily in an object-oriented way, making it easy to understand and use. Configuration is carried out on a PC using iX Developer software. The project can then be transferred and stored in the HMI panel itself. Various types of automation equipment such as PLCs, servos, or drives can be connected to the HMI panels. In this manual, the term “the controller” refers to the connected equipment. This manual explains how to install the HMI panel. Please refer to the iX Developer reference manual for further information.

Copyright © 2023 Beijer Electronics AB. All rights reserved.

The information in this document is subject to change without notice and is provided as available at the time of publishing. Beijer Electronics AB, including all its group companies, reserves the right to change any information without updating this publication. Beijer Electronics AB, including all its group companies, assumes no responsibility for any errors that may appear in this document. Read the entire document before installing and using this equipment. Only qualified personnel may install, operate, or repair this equipment. Beijer Electronics AB, including all its group companies, is not responsible for modified, altered, or renovated equipment. Because the equipment has a wide range of applications, users must acquire the appropriate knowledge to use the equipment properly in their specific applications. Persons responsible for the application and the equipment must themselves ensure that each application complies with all relevant requirements, standards, and legislation concerning configuration and safety. Only parts and accessories manufactured according to specifications set by Beijer Electronics AB, including all its group companies, may be used.

BEIJER ELECTRONICS AB, INCLUDING ALL ITS GROUP COMPANIES, SHALL NOT BE LIABLE TO ANYONE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE INSTALLATION, USE OR REPAIR OF THIS EQUIPMENT, WHETHER ARISING IN TORT, CONTRACT OR OTHERWISE. BUYER’S SOLE REMEDY SHALL BE THE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE, AND THE CHOICE OF THE APPLICABLE REMEDY SHALL BE AT THE SOLE DISCRETION OF BEIJER ELECTRONICS AB, INCLUDING ALL ITS GROUP COMPANIES.

Head Office

• Beijer Electronics AB Box 426 201 24 Malmö, Sweden
• www.beijerelectronics.com
• +46 40 358600

Safety Precautions

Both the installer and users of the HMI panel must read and understand this manual.

General

• Read the safety precautions carefully.
• Check the delivery for transportation damage. If damage is found, notify the supplier as soon as possible.
• Do not use the HMI panel in an environment with high explosive hazards.
• The supplier is not responsible for modified, altered, or reconstructed equipment.
• Use only parts and accessories manufactured according to the specifications of the supplier.
• Read the installation and operating instructions carefully before installing, using, or repairing the HMI panel.
• Never allow fluids, metal filings, or wiring debris to enter any openings in the HMI panel. This may cause fire or electrical shock.
• Only qualified personnel may operate the HMI panel.
• Storing the HMI panel where the temperature is lower or higher than recommended in this manual can cause the LCD liquid to congeal and become isotropic.
• The LCD liquid contains a powerful irritant. In case of skin contact, wash immediately with plenty of water. In case of eye contact, hold the eye open, flush with plenty of water, and get medical attention.
• The figures in this manual serve an illustrative purpose. Because of the many variables associated with any particular installation, the supplier cannot assume responsibility for actual use based on the figures.
• The supplier neither guarantees that the HMI panel is suitable for your particular application nor assumes responsibility for your product design, installation, or operation.
• It is recommended to turn on and shut down the HMI panel at least once before installing any components or cards, or before connecting the HMI panel to external devices, for example, serial devices.

Hazardous Materials

PBDE
X| O| O| O| O| O

• O: Indicates that the concentration of the hazardous substance in all homogeneous materials in the parts is below the relevant threshold of the GB/T 26572-2011 standard.
• X: Indicates that the concentration of the hazardous substance of at least one of all homogeneous materials in the parts is above the relevant threshold of the GB/T 26572-2011 standard. But still complies with the EU RoHS Directive 2011/65/EU.

Disposal Requirements Under WEEE Regulations

• For professional users in the European Union: If you wish to discard electrical and electronic equipment (EEE), please contact your dealer or supplier for further information.
• For disposal in countries outside of the European Union: If you wish to discard this product please contact your local authorities or dealer and ask for the correct method of disposal.

UL and cUL Installation
Indoor use only. Altitude up to 2,000 m. Pollution Degree 2. Do not use it in wet locations or in areas where moisture or condensation can be expected.

WARNING

• The temperature resistance of the power cable used must be at least 55°C.
• Use copper conductors only.
• Power Port: Use cable type – AWG (American Wire Gauge) 12~28 and tighten terminal screws with a torque value of 4.5 lb-in.
• COM C Port: Use cable type – AWG (American Wire Gauge) 16~28 and tighten terminal screws with a torque value of 1.7 lb-in.
• If the equipment is used in a manner not specified, the protection provided by the equipment may be impaired.
• The person responsible for installation safety for all systems covered by the equipment is the person who installs the system.
• Repairs may only be carried out by the manufacturer.
• The manufacturer is not liable for damages resulting from failure to comply with the manufacturer’s instructions.

During Installation

• Install the HMI panel according to the accompanying installation instructions.
• Ground the HMI panel according to the accompanying installation instructions.
• Only qualified personnel may install the HMI panel.
• Separate the high voltage, signal, and supply cables.
• Make sure that the voltage and polarity of the power source are correct before connecting the HMI panel to the power outlet.
• Peripheral equipment must be appropriate for the application and location.

During Use

• Keep the HMI panel clean.
• Emergency stops and other safety functions may not be controlled from the HMI panel.
• Do not use excessive force or sharp objects when operating the touch screen.

Service and Maintenance

• Only qualified personnel should carry out repairs.
• The agreed warranty applies.
• Before carrying out any cleaning or maintenance operations, disconnect the equipment from the electrical supply.
• Clean the display and surrounding front cover with a soft cloth and mild detergent.
• The battery must be replaced by an authorized Beijer Electronics service center.

Cleaning the Display
We recommend using a dry, clean cloth to wipe off dust regularly. Use alcohol or ammonia-based cleaning agents for cleaning only when necessary. When other solvents or cleaning agents are used, be sure to follow manufacturers’ instructions. The agent should be applied to a clean cloth and should not be sprayed directly onto the panel surface. After cleaning the agent should be removed. Ammonia-based glass cleaners (typically 5-10% ammonia) or 75% alcohol can be used to clean the surface of PCAP and resistive touch panels. When you clean the surface of your touch panel, please follow these steps:

1. Apply a cleaning agent (alcohol, bleach, or glass cleaner) to a clean cloth. Make sure the cloth is well-saturated.
2. Wipe the touch panel surface in a “Z” motion (see illustration below).
3. Dry the panel thoroughly with a dry cloth, removing as much of the cleaning solution as possible.
4. Do not mix bleach and ammonia because this will produce a dangerous chemical reaction.
5. Please do not spray the cleaning solution directly onto the touch panel surface.

NOTE

• Cleaning solutions containing bleach, alcohol, and ammonia are corrosive to touch panel surface coatings and ITO film. Do not leave the solution on the touch panel surface for more than 2 minutes. Make sure to remove all residue when finished cleaning.
• Do not use sharp tools to clean the surface of the touch screen.
• Do not use air guns, water jets, or steam, to clean the surface of the touch screen as they may damage touch screen functionality.
• If condiments, food, or drinks are spilled on the surface of the touchscreen, please remove it immediately.
• Ensure moisture does not seep through the cable connection area from the edges during cleaning.

Dismantling and Scrapping

• Recycle the HMI panel and parts of it according to local regulations.
• The following components contain substances that might be hazardous to health and the environment: lithium battery, electrolytic capacitor, and display.

Appearance of Air in Touch Screen
The layer structure of the touch screen contains air. In rare cases, the appearance of bubbles can arise. This is purely cosmetic and does not affect the functionality of the HMI panel. The appearance can occur under certain environmental conditions such as changes in temperature, humidity, or atmospheric pressure.

Naming Convention

The name of each panel is based on its properties according to the table below.

Naming Convention

Examples:

• X2 base 5 v2
• X2 pro 7
• X2 control 10
• X2 marine 12 SC
• X2 marine 15 HB SC
• X2 extreme 7 12V*
• X2 extreme 12 HP SC*
• X2 extreme 7 SL HP*
• X2 extreme 12 SL HP SC*
• X2 extreme 7 CO*
• X2 extreme 12 SL HP RO

NOTE

• Not all combinations are available.
• indicates variants including IECEx\ATEX and C1D2 accreditation.

Installation

Space Requirements
Maximum installation plate thickness: 4 mm.

The following drawings show the space requirements in millimeters when installing the HMI panel. The drawings are only illustrative and may be out of proportion.

Installation Process
The following is needed:

• A Phillips/slot screwdriver

Do the following:

1. Unpack and check the delivery. If damage is found, notify the supplier.
   NOTE
   Place them on a stable surface during installation. Dropping the HMI panel or letting it fall may cause damage.

2. To cut a correct opening for the HMI panel, use the cutout dimensions in the outline drawing. A separate cut-out drawing is available for download from the Beijer Electronics website. For more information, see chapters HMI Panel Drawings and Technical Data.

3. Make sure that the mounting surface of the cutout is smooth and cleaned from any burrs or debris.

4. Install the HMI panel into the cutout.

5. Secure the HMI panel in position, using all the fastening holes and the provided brackets and screws.
   Tighten the screws to 0.15 – 0.2 Nm.

6. In cases where the front panel seal is critical, use a torque wrench to ensure all screws are torqued within the specification above.

7. Connect the cables in the specified order, according to the following drawing and steps.
   The image is illustrative only and may differ slightly from the actual panel.

   • Connect cable A.
   • Connect cable B, using 14-20 AWG (2.08–0.52 mm2), 180–220 N-cm torque.
   • Connect cable C.
   • Connect cable D. The recommended cross-section of the cable is 1.5 mm2.

8. Carefully remove the protective film over the HMI panel display, taking care to avoid static electricity that could damage the panel.

CAUTION

• The HMI panel must be brought to ambient temperature before it is started up. If condensation forms, ensure that the HMI panel is dry before connecting it to the power outlet.
• Ensure that the HMI panel and the controller system have the same electrical grounding (reference voltage level), otherwise, communication errors may occur.
• Ensure that the voltage and polarity of the power source are correct.
• Separate high voltage cables from signal and supply cables.
• Shielded communication cables are recommended.

Connections to the Controller
For information about the cables to be used when connecting the HMI panel to the controller, please refer to the help file for the driver in question.

Other Connections and Peripherals
Cables, peripheral equipment, and accessories must be suitable for the application and its environment. For further details or recommendations, please refer to the supplier.

Open Ports
In the firmware some ports are open by default due to the operating system or that the internal application requires it.

1. Filtered.

Technical Data

RTS/CTS, 1x RS-422 or 2x RS-485
Serial port COM B| Standard DSUB (9-pin, female). 1x RS-232 RX/TX with RTS/CTS, 1x RS-422 or 1x RS-485
Serial port COM C| 3-pin screw connector 1x RS-485
Ethernet LAN A| 10/100 Mbit/s. Shielded RJ 45
Ethernet LAN B| 10/100 Mbit/s. Shielded RJ 45
USB-A| 1 × USB Host 2.0, max output 500 mA
USB-B| 1 × USB Host 2.0, max output 500 mA
External storage media| 1 × μSD card
Flash memory (application memory)| 2 GB
Memory RAM| 512 MB (DDR3)
NVRAM| 16 kB
LED| N/A
Real-time clock| Yes
Battery| Lithium battery type CR 2032, exchangeable
Power consumption at rated voltage| 7.2 W
Fuse| Internal DC fuse, 3 AT, SMD
Power supply| +24 VDC (18-32 V DC) CE: The power supply must conform with the requirements according to EN/IEC 60950 and EN/IEC 61558-2-4. UL and cUL: The power supply must conform to the requirements for class 2 power supplies. Maximum Current

1.32 A. Maximum Power 23.8 W.

Display| 7.0” TFT-LCD with LED backlight. 800×480 pixels, 16M colors
The active area of the display, W×H| 154.08×85.92 mm
---|---
Pixel errors| Class I (ISO 9241-307)
Backlight brightness| 400 cd/m2
Backlight lifetime| 20000 hours
Operating temperature| -10°C to +50°C
Storage temperature| -20°C to +60°C
Relative humidity in operation| 5 – 90% non-condensed / 25°C
Vibration| 1g, according to IEC 60068-2-6, Test Fc
Mechanical shock| 10g, half-sine, 6ms according to IEC60068-2-27
Approvals and certifications| CE/FCC/KCC Information is available on http:// www.beijerelectronics.com
UL approval| Information is available at http://www.beijerelectronics.com and https://UL.com

Chemical Resistance

Touch Screen and Overlay Material

Protective Film
The Autoflex protective film covers the overlay surrounding the screen.

Solvent Resistance
The protective film withstands exposure of more than 24 hours duration under DIN 42115 Part 2 to the following chemicals without visible change:

1. Extremely faint glossing of the texture was noted.

• The Autoflex protective film withstands DIN 42 115 Part 2 exposure of up to 1-hour duration to glacial acetic acid without visible change.
• The Autoflex protective film is not resistant to high-pressure steam at over 100°C or the following chemicals:

Touch Screen Surface
The touchscreen surface on the HMI panel withstands exposure to the following solvents without visible change:

The touchscreen surface on the HMI panel is made of polyester with a hard coat to resist scratches and withstand exposure to many solvents without visible change.

Touch Screen Protector
For harsh environments and exposure to outdoor conditions, it is recommended to use a protective film to guard the touch screen from damage. This optional part can be ordered from Beijer Electronics.

HMI Panel Drawings

Connectors

Power supply pin assignment

Pos| Description
1| Vin+ (Main input supply voltage)
2| Vin- (Power ground)
3| FG (Frame Ground)
COM-A

Serial port pin assignment
Pin| COM 1| COM 2| COM 3
1|  | RS-422 TX+ or RS-485 Tx+/Rx+|
2| RS-232 RxD|  |
3| RS-232 TxD|  |
4|  | RS-422 RX+| RS-485 Tx+/Rx+
5| GND| GND| GND
6|  | RS-422 TX- or RS-485 Tx-/Rx-|
7| RS-232 RTS|  |
8| RS-232 CTS|  |
9|  | RS-422 RX-| RS-485 Tx+/Rx-

The connector supports up to three independent serial communication channels and can be configured for RS-232 and RS-422 or 2×RS-485.

COM-B

Serial port pin assignment
Pin| COM 4| COM 5
1|  | RS-422 TX+ or RS-485 Tx+/Rx+
2| RS-232 RxD|
3| RS-232 TxD|
4|  | RS-422 RX+
5| GND| GND
6|  | RS-422 TX- or RS-485 Tx-/Rx-
7| RS-232 RTS|
8| RS-232 CTS|
9|  | RS-422 RX-

The connector supports up to two independent serial communication channels and can be configured for RS-232 and RS-422 or RS-485.

COM-C

Serial port pin assignment
Pin| COM
1| GND
2| RS-485 Tx+/Rx+
3| RS-485 Tx-/Rx-

HMI Panel Outline

NOTE

• The minimum thickness for the front plate is 2.0mm.
• A Step CAD file is available on www.beijerelectronics.com.

Additional Installation Tips

When experiencing communication problems in noisy environments or when operating close to temperature limits, the following recommendations are to be noticed.

Grounding the HMI Panel

The mounting clamps of the HMI panel do not provide a secure grounding connection between the panel and the device cabinet, see 1 in the drawing above. To ground the HMI panel:

1. Connect a wire, that is sized correctly according to local electrical codes, between the quick-connect terminal connector on the HMI panel and the chassis of the panel, see 2 in the drawing above.
2. Connect a wire or grounding braid, that is sized correctly according to local electrical codes, between the chassis of the HMI panel and the closest grounding point on the door, see 3 in the drawing above.
3. Connect a strong but short grounding braid between the door and the device cabinet, see 4 in the drawing above.
4. Twist the cables onto the 24 V DC feed, see 5 in the drawing above.
   • 2 turns around the ferrite core provide 4 times the suppression of 1 turn.
   • 3 turns around the ferrite core provide 9 times the suppression of 1 turn.
   • Connect a wire or grounding braid, that is sized correctly according to local electrical codes, between the chassis of the HMI panel and the closest grounding point.

NOTE

• The grounding wires should be short and the conductor should have a large area.
• A long, thin grounding wire has a very high impedance (resistance) at high frequencies and does not guide disturbances to the ground.
• Multi-wire conductors are better than single-wire conductors with the same area.
• A braided conductor wire with the same area is even better. The best is a short, thick grounding braid.

Ethernet Connection in the HMI Panel

• In some industrial units for Ethernet, the RJ45 contact’s shield is connected to the chassis via a capacitor, see 1 in the drawing above.
• The Ethernet shield of the HMI panel is directly connected to the chassis, see 2 in the drawing above.
• Check whether the other Ethernet unit has its shield directly grounded or grounded via a capacitor.

NOTE
In many cases, connecting the shielded Ethernet cabling to the chassis at both ends is inappropriate. Humor grounding loops can occur. Unshielded cabling may even result in fewer communication errors.

• A good solution may be to use a shielded Ethernet cable, but to connect the shield at one end only. One option is to break the shield, see 3 in the drawing above.
• A more elegant method is to expand the shielded Ethernet cable with a piece of unshielded Ethernet cable, see 4 in the drawing above.
• The shield can be grounded via an external 0.1 μF/250 V film capacitor, see 5 in the drawing above. This connects the HF transients to the ground.

To Achieve Better EMC Protection

• Initially, use the original cabling from Beijer Electronics primarily.
• Place the 24 V DC and communications cabling in one cable trunk/cable duct and 230/380 V AC in another. If the cables need to be crossed, cross them at 90° only. Avoid combining the cabling for stronger 24 V DC outputs with the communication cabling.
• Use shielded cables for RS-232 communication.
• Use twisted pair and shielded cabling for RS-422 and RS-485.
• Use the cabling intended for the bus type; Ethernet, Profibus, CC-Link, CAN, Device Net, etc.
• Install and connect according to applicable specifications for the relevant bus standard.
• Use shielded cabling for Ethernet, preferably with foil and a braided shield.
• D-sub covers should be shielded, and the shield should be connected to the cover 360° where the cable enters.
• Connect the shield at both ends.

With longer distances, there is a risk that the ground potential may be different. In that case, the shield should only be connected at one end. A good alternative is to connect the other end of the shield to the ground via a 0.1 μF / 250 V film capacitor. Both ends are then connected to the ground in terms of HF, but only connected to the ground at one end in terms of LF, thus avoiding the 50/60 Hz grounding loops.

1. Use an EMC cable gland or regular plastic cable gland, remove the outer jacket, and connect the shield to the installation plate with a 360° metal cable clamp.
2. Place the 24 V DC and communications cabling in one cable trunk/cable duct and 230/380 V AC in another. If the cables need to be crossed, cross them at 90° only. Avoid combining the cabling for stronger 24 V DC outputs with the communication cabling.

NOTE
Ferrite cores that are snapped onto the shielded cabling may remove minor disturbances. Large ferrite pieces that are snapped onto unshielded cabling and where the wires go 2-4 times around the cores are approximately 5-25 times more efficient.

Ambient Temperature
The maximum ambient temperature for the HMI panel is provided in the specifications. The ambient temperature refers to the temperature in the device cabinet which cools the HMI panel’s electronics.

• In most cases, the ambient temperature for the HMI panel is significantly higher than the device cabinet’s ambient temperature.
• If the cabinet is tall and there are several heat-generating devices, the temperature at the top of the cabinet is considerably higher than the temperature increase that would be expected. All electronics are sensitive to heat. The lifespan of an electrolytic capacitor is cut in half with an 8-10 °C increase in temperature. A 15-20 °C temperature increase results in a quarter of the lifespan etc.
• Rittal has a good program for estimating the anticipated average temperature in the cabinet as well as a large program for controlling the temperature in the device cabinet.
• An enamel-coated steel cabinet has a radiant heat value of 5.5 W/m2 per °C.
• Installing a fan inside the cabinet evens out the temperature while moving air provides considerably better cooling than still air.
• Install the fan so that it sits in a cooler area and blows cold air against the HMI panel. If the fan is mounted at the top and sucks warm air upwards, the ambient temperature of the fan becomes higher, resulting in a shorter lifespan.
• An approximate value of the net power consumption for the HMI panel can be calculated by multiplying the supply voltage with the current drawn by the HMI panel. This is assuming that all supplied power is transformed into heat.

NOTE
Please ensure that the temperature will not exceed the maximum ambient operating temperature in the enclosure. This can be influenced by other heat- generating devices.

Safety

• If a power supply that meets safety standards is used and only powers the HMI panel, there is no problem. See 1 in the drawing above.
• However, if a 24 V unit that also powers other units is used, there is reason to be cautious, see 2 in the drawing above. The HMI panel does not have insulation that meets safety requirements in the event of a potential short circuit between 230 V AC and 24 V DC. It is assumed that the 24 V power supply is secure, for example, SELV according to EN 60950 (protection against electric shock) and UL 950.

NOTE
Here is an example that explains why a secure 24 V DC power supply can be ruined by mixing 24 V relay contacts with 230 V AC relay contacts in a smaller controller. Check that the clearances and creepage distances between 24 V DC and 230 V AC fulfill EN 60950 or UL 950. If not, input a separate 24 V unit into the HMI panel.

If there is a substantial distance between the relay contacts for 24 V DC and 230 V AC, it is OK to use the same 24 V devices for all feeds. See 3 in the drawing above.

Connect 0 V on the 24 V power supply to the ground, see 4 in the drawing above. This offers three advantages:

• Safety is increased. The 24 V power supply is not live in the event of a faulty connection or short circuit between 0 V (24 V) and 230 V phase.
• Transients on the 24 V feed are connected to the ground.
• No risk that the 24 V feed is at a high level in relationship to the ground. This is not unusual since there is high static electricity.

Galvanic Isolation

The HMI panel has galvanic isolation against the 24 V DC power supply but no galvanic isolation between the communication ports for RS-232, RS-422, RS-485 and USB. Only the Ethernet connection has galvanic isolation.

• When a PC is connected to the HMI panel, the internal 0 V (GND) of the panel is connected to the protective ground via the PC.
• Several USB devices can have the shield connected to the protective ground. Here, the 0 V (GND) of the HMI panel is connected to the protective ground when, for example, a USB memory stick, keyboard, or similar device is plugged in.
• If several units are connected that have a 0 V and a ground connection, and these are connected to various grounding points, there is a substantial risk of problems. Grounding currents go through communication cables, the rear plate of the controller, and internally in the HMI panel, and can cause errors.
• Use external units to improve communication and achieve galvanic isolation. Westermo has good industry-standard insulators that are also insulated from the 24 V DC feed.

NOTE

• It is very important to make sure that the 24 V feed in the external insulation unit is not connected to one of the communication outlets. If it does not have 100%insulation against the 24 V feed, disturbances, and grounding currents from the 0 V on the 24 V side disrupt the communication.
• Using this type of unit solves one problem but creates a larger problem! A substandard installation may work now, but problems may arise when other devices are connected.

Cable and Bus Termination RS-485

• If maximum transfer distance and maximum transfer speed are needed, shielded and twisted pair cables should be used. The mutual capacitance may not exceed 52.5 pF/m, and the cable area should be at least 0.25 mm2 (AWG 24).
• 0 V, the reference voltage for communication should be included in the cabling. With two-way communication use two pairs; one pair for communication and one pair for 0 V.
• The shield must be grounded at one end. The other end is usually grounded, but with longer distances or when there is a difference in the ground potential, the shield should be connected to the ground via 0.1 μF / 250 V film capacitor to prevent ground current in the braided shield. Some manufacturers recommend that the shield be grounded at each node. Various manufacturers have different systems for bus termination.

Depending on the recipients’ design, the bus wires may be on the same level or require pull-up or pull-down to ensure that no faulty signals are detected when the bus is in resting mode (all transmitters are disconnected).

USB Flash Drive
The USB ports, or ports, are of 2.0 standard and support FAT16, FAT32, and exFAT file systems for USB flash drives (option, sold separately).

Size limitations for file systems:

• FAT16: up to 2 GB
• FAT32: up to 32 GB
• exFAT: up to 2 TB

Image Sticking
When utilizing TFT LCD HMI panels in applications where a fixed or partially fixed image remains displayed on the screen for extended periods, users may experience a phenomenon referred to by the LCD industry as Image Sticking. Image stacking, sometimes also called “image retention” or “ghosting”, is a phenomenon where a faint outline of a previously displayed image remains visible on the screen when the image is changed.

Image sticking can be caused by:

• Static images
• No screensaver
• Sharp contrast transition (e.g. black/white)
• High ambient temperatures

How Image sticking can be avoided or reduced:

• Use the screensaver functionality (see SW manual).
• Changing constantly between static and dynamic images.
• Avoid excessive brightness differences between foreground and background elements.
• Use colors with similar brightness.
• Use complementary colors in follow-up images.

Head Office

• Beijer Electronics AB Box 426 201 24 Malmö, Sweden
• www.beijerelectronics.com
• +46 40 358600

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