Beckhoff C6675 User manual

Manual | EN
C6675
Industrial PC
2022-9-13 | Version: 1.0

Table of contents
C6675 3Version: 1.0
Table of contents
1 Notes on the documentation....................................................................................................................5
2 For your safety ..........................................................................................................................................6
2.1 Description of safety symbols ...........................................................................................................6
2.2 Intended use .....................................................................................................................................6
2.3 Fundamental safety instructions .......................................................................................................7
2.4 Operator's obligation to exercise diligence........................................................................................7
2.5 Notes on information security............................................................................................................8
3 Product overview ......................................................................................................................................9
3.1 Structure..........................................................................................................................................10
3.2 Interface description........................................................................................................................11
3.2.1 Power supply.................................................................................................................... 12
3.2.2 PS/2 .................................................................................................................................12
3.2.3 USB.................................................................................................................................. 13
3.2.4 Ethernet RJ45 ..................................................................................................................14
3.2.5 DVI ...................................................................................................................................15
3.2.6 RS232 ..............................................................................................................................15
3.2.7 DisplayPort....................................................................................................................... 16
3.2.8 Audio connections............................................................................................................ 17
3.3 Optional interfaces ..........................................................................................................................18
3.4 Name plate......................................................................................................................................19
4 Commissioning .......................................................................................................................................20
4.1 Transport and unpacking ................................................................................................................20
4.2 Control cabinet installation ..............................................................................................................21
4.3 Connecting the industrial PC...........................................................................................................23
4.3.1 Grounding of the industrial PC ......................................................................................... 23
4.3.2 Connecting cables and power supply .............................................................................. 25
4.4 Switching the industrial PC on and off ............................................................................................26
5 Beckhoff Device Manager ......................................................................................................................27
6 Decommissioning ...................................................................................................................................29
6.1 Disconnecting the power supply and cables ...................................................................................29
6.2 Disassembly and disposal...............................................................................................................30
7 Maintenance ............................................................................................................................................31
7.1 Cleaning ..........................................................................................................................................31
7.2 Maintenance....................................................................................................................................32
7.2.1 Access to device components.......................................................................................... 34
7.2.2 Replacing the battery .......................................................................................................37
7.2.3 Replacing the storage media ........................................................................................... 38
7.2.4 Replacing the fan .............................................................................................................41
8 Troubleshooting......................................................................................................................................44
9 Technical data .........................................................................................................................................45
10 Appendix..................................................................................................................................................46
10.1 Service and support ........................................................................................................................46

Table of contents
C66754 Version: 1.0
10.2 Approvals ........................................................................................................................................47

Notes on the documentation
C6675 5Version: 1.0
1 Notes on the documentation
This description is only intended for the use of trained specialists in control and automation engineering who
are familiar with the applicable national standards.
The following instructions and explanations must be followed during installation and commissioning of the
components. The responsible staff must ensure that the application or use of the products described satisfy
all the requirements for safety, including all the relevant laws, regulations, guidelines and standards.
Disclaimer
The documentation has been prepared with care. The products described are, however, constantly under
development. For that reason the documentation is not in every case checked for consistency with
performance data, standards or other characteristics. In the event that it contains technical or editorial errors,
we retain the right to make alterations at any time and without warning. No claims for the modification of
products that have already been supplied may be made on the basis of the data, diagrams, and descriptions
in this documentation. All illustrations shown are only examples. The configurations depicted may deviate
from the standard.
Trademarks
Beckhoff®, TwinCAT®, TwinCAT/BSD®, TC/BSD ®, EtherCAT®, EtherCAT G®, EtherCAT G10®, EtherCAT P®,
Safety over EtherCAT®, TwinSAFE®, XFC®, XTS® and XPlanar® are registered and licensed trademarks of
Beckhoff Automation GmbH.
Other designations used in this publication may be trademarks whose use by third parties for their own
purposes could violate the rights of the owners.
Patents
The EtherCAT Technology is covered, including but not limited to the following patent applications and
patents: EP1590927, EP1789857, EP1456722, EP2137893, DE102015105702 and similar applications and
registrations in several other countries.
Copyright
© Beckhoff Automation GmbH & Co. KG. Publication of this document on websites other than ours is
prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the
grant of a patent, utility model or design.
Delivery state
All the components are supplied in particular hardware and software configurations appropriate for the
application. Changes to the hardware or software configuration are permitted, provided they are within the
specified limits for power consumption and power loss (please refer to the respective data sheet).
Delivery conditions
In addition, the general delivery conditions of the company Beckhoff Automation GmbH & Co. KG apply.

For your safety
C66756 Version: 1.0
2 For your safety
The Safety chapter first explains the safety symbols used in the documentation and their meanings. They
contain fundamental safety instructions that are essential for the avoidance of personal injuries and damage
to property.
Exclusion of liability
Beckhoff shall not be liable in the event of non-compliance with this documentation and thus the use of the
devices outside the documented operating conditions.
2.1 Description of safety symbols
The following safety symbols are used in these operating instructions. In order to avoid personal injuries and
damage to property, read and follow the safety and warning notices.
Warning of personal injuries:
DANGER
Disregarding the safety notice will lead to death or serious injuries.
WARNING
Disregarding the safety notice may lead to death or serious injuries.
CAUTION
Disregarding the safety notice may lead to minor injuries.
Warning of damage to property:
NOTE
Disregarding the notice may lead to damage to property.
2.2 Intended use
The ATX-based industrial PC is designed for control cabinet installation and for use as a control system in
machine and system engineering for automation, visualization and communication.
The industrial PC has been developed for an IP20 working environment. It is protected against the
penetration of fingers and solid foreign bodies of 12.5 mm in diameter or larger in size. There is no protection
against dust and liquids. Operation of the device in wet and dusty environments is not permitted.
The specified limits for technical data must be adhered to.
The industrial PC can be used within the documented operating conditions.
Improper use
Do not use the industrial PC outside the documented operating conditions.

For your safety
C6675 7Version: 1.0
2.3 Fundamental safety instructions
The following safety instructions must be observed when handling the industrial PC.
Application conditions
• Do not use the industrial PC under extreme environmental conditions.
• Never use the industrial PC in potentially explosive atmospheres.
• Do not carry out any work on the industrial PC when it is live. Always switch off the supply voltage for
the device before mounting it, replacing device components or rectifying malfunctions. This does not
apply to the replacement of hard disks and SSDs in a RAID configuration.
• Never plug or unplug connectors during thunderstorms. There is a risk of electric shock.
• Ensure that the device has a protective and functional earth connection.
Damage to property, loss of data and impairment of functions
• If you change the hardware and software configurations, you must keep within the specified limits of
power consumption and power loss (please refer to the respective data sheet).
• Ensure that only trained specialists with a control and automation engineering background, operate the
industrial PC. Use by unauthorized persons can lead to damage to property and loss of data.
• In case of fire, extinguish the industrial PC with powder or nitrogen.
2.4 Operator's obligation to exercise diligence
The operator must ensure that
• the products are used only for their intended purpose (see Chapter 2.2 Intended use).
• the products are only operated in sound condition and in working order.
• the products are operated only by suitably qualified and authorized personnel.
• the personnel is instructed regularly about relevant occupational safety and environmental protection
aspects, and is familiar with the operating instructions and in particular the safety instructions contained
herein.
• the operating instructions are in good condition and complete, and always available for reference at the
location where the products are used.

For your safety
C66758 Version: 1.0
2.5 Notes on information security
The products of Beckhoff Automation GmbH & Co. KG (Beckhoff), insofar as they can be accessed online,
are equipped with security functions that support the secure operation of plants, systems, machines and
networks. Despite the security functions, the creation, implementation and constant updating of a holistic
security concept for the operation are necessary to protect the respective plant, system, machine and
networks against cyber threats. The products sold by Beckhoff are only part of the overall security concept.
The customer is responsible for preventing unauthorized access by third parties to its equipment, systems,
machines and networks. The latter should be connected to the corporate network or the Internet only if
appropriate protective measures have been set up.
In addition, the recommendations from Beckhoff regarding appropriate protective measures should be
observed. Further information regarding information security and industrial security can be found in our
https://www.beckhoff.com/secguide.
Beckhoff products and solutions undergo continuous further development. This also applies to security
functions. In light of this continuous further development, Beckhoff expressly recommends that the products
are kept up to date at all times and that updates are installed for the products once they have been made
available. Using outdated or unsupported product versions can increase the risk of cyber threats.
To stay informed about information security for Beckhoff products, subscribe to the RSS feed at https://
www.beckhoff.com/secinfo.

Product overview
C6675 9Version: 1.0
3 Product overview
The industrial PC C6675 belongs to the series of powerful industrial PCs for control cabinet installation with
ATX motherboard. The device is suitable for various applications and requirements.
Thanks to the available processors, the industrial PC can be used for the following applications, among
others:
• diverse automation and visualization tasks
• wide range of IoT tasks with data preprocessing
• complicated HMI applications
• extensive axis controllers
• short cycle times
• high-volume data handling
The basic configuration of the C6675 includes the following aspects:
• ATX motherboard
• Intel® processor
• 2 x DRAM SODIMM
• 3½-inch hard disk
• 2 x hard drive caddy for a 3½-inch hard disk
• 100…240VAC power supply unit

Product overview
C667510 Version: 1.0
3.1 Structure
1
2
3
4
5
6
Fig.1: C6675_Structure
Table1: Key - C6675 structure
No. Component Description
1 Mounting concept Holes for mounting the industrial PC in the control cabinet
2 Connection compartment Access to interfaces of the industrial PC
3 Name plate Information on the equipment of the industrial PC
4 Housing cover Access to exchangeable device components
5 Optional multi DVD drive Read and write CDs and DVDs
6 Two hard drive caddies Hard disks or SSDs

Product overview
C6675 11Version: 1.0
3.2 Interface description
In the basic configuration, the industrial PC includes the following interfaces:
• Power supply (X101)
• PS/2 mouse and keyboard (X103, X104)
• USB (X108-X111)
• Ethernet RJ45 (X112, X113)
• DVI (X114, X115)
• RS232 (X116)
• DisplayPort (X117)
• Audio connections (X120-X122)
Fig.2: C6675_connection section

Product overview
C667512 Version: 1.0
3.2.1 Power supply
In its basic configuration, the industrial PC is equipped with a 100-240VAC, 50-60 Hz full-range power supply
unit.
Table2: Current carrying capacity power supply unit
Output voltages power supply unit Current load 100-240VAC power supply unit max.
+3.3 V 20 A
+5 V 25 A
+12 V total 50 A
-12 V 0.5 A
+5 V stand by 3.0 A
The power supply is connected via the IEC socket (X101) on the top of the industrial PC. The assignment
includes a protective conductor (1), a neutral conductor (2) and an outer conductor (2) (see Fig. 3).
X101
1
2 2
Fig.3: C6675_voltage socket 100-240 V
3.2.2 PS/2
The industrial PC has two PS/2 interfaces (X103, X104). The upper interface (X104) allows the connection of
a PS/2 mouse, the lower interface (X103) allows the connection of a PC keyboard. The connection is made
via standard MiniDIN connectors.
B6 B5
B2 B1
A6 A5
A2 A1
X104
X103
Fig.4: C6675_PS/2 mouse and keyboard
Table3: PS/2 interface mouse pin assignment
Pin Name Description
B1 MDAT Mouse Data
B2 N/C Reserved
B3 GND Ground
B4 (S)VCC 5V supply voltage
B5 MCLK Mouse Clock
B6 N/C Reserved

Product overview
C6675 13Version: 1.0
Table4: PS/2 interface keyboard pin assignment
Pin Name Description
A1 KDAT Keyboard data
A2 MDAT Mouse Data
A3 GND Ground
A4 (S)VCC 5V supply voltage
A5 KCLK Keyboard Clock
A6 MCLK Mouse Clock
3.2.3 USB
The industrial PC has four USB interfaces (X108-X111). They are used to connect peripheral devices with
USB interfaces.
1 2 34
9 8 76 5
1 2 34
9 8 76 5
9 8 76 5
1 2 34
9 8 76 5
1 2 34
X109
X108
X111
X110
Fig.5: C6675_USB interface pin numbering
Table5: USB interface pin assignment
Pin Connection
Shield GND
1 Vbus
2 D -
3 D +
4 GND
5 StdA_SSRX -
6 StdA_SSRX +
7 GND_DRAIN
8 StdA_SSTX -
9 StdA_SSTX +

Product overview
C667514 Version: 1.0
3.2.4 Ethernet RJ45
The industrial PC has two Gigabit LAN ports (X112, X113). The 100Base-T and 1000Base-T Ethernet
standards enable the connection of corresponding network components and data rates of 100/1000 Mbit/s.
The required speed is selected automatically.
The RJ45 connection technology with twisted-pair cables is used. The maximum length of the cable
connection is 100 m.
The industrial PC is to be connected only to internal Ethernet networks without exiting a facility and being
subjected to TNVs.
The controllers are used as follows, based on the device generation:
Table6: Controller classification based on device generation
Generation Controller
C6675-0060 Intel® i219 for LAN1 and i210 for LAN2
If you use the Ethernet ports with EtherCAT or for Real-Time Ethernet applications, you have to regard the
following distinction:
The Ethernet port (X113, LAN2) connected via PCIe with the i210 controller is generally suitable for cycle
times <= 1ms and for distributed clock applications with EtherCAT.
The Ethernet port (X112, LAN1) integrated in the chipset with the i219 controller is generally suitable for
EtherCAT and real-time Ethernet applications with cycle times > 1 ms (without distributed clocks).
8181
LAN 1
X112
LAN 2
X113
Fig.6: C6675_Ethernet interface pin numbering
Table7: Ethernet interface pin assignment
Pin Signal Description
1 T2 + Pair 2
2 T2 -
3 T3 + Pair 3
4 T1 + Pair 1
5 T1 -
6 T3 - Pair 3
7 T4 - Pair 4
8 T4 -
The LEDs of the LAN interfaces indicate the activity and the speed of the data transmission (Mbit/s). The
LED on the right in the figure indicates whether the interface is connected to a network. If this is the case, the
LED lights up green. The LED flashes when data transmission is in progress.
The LED on the left in the figure indicates the speed of the data transmission. If the speed is 100 Mbit/s the
LED is orange, at 1000 Mbit/s it is green.

Product overview
C6675 15Version: 1.0
3.2.5 DVI
The industrial PC has two DVI connections (X114, X115). to which a DVI-capable monitor can be connected.
Only digital signals are transmitted.
16
18
2417
9
X114
X115 18
2417
9
Fig.7: C6675_DVI interface pin numbering
Table8: DVI interface pin assignment
Pin Connection Pin Connection Pin Connection
1 TDMS Data 2 - 9 TDMS Data 1 - 17 TDMS Data 0 -
2 TDMS Data 2 + 10 TDMS Data 1 + 18 TDMS Data 0 +
3 TDMS Data 2/4 Shield 11 TDMS Data 1/3 Shield 19 TDMS Data 0/5 Shield
4 not connected 12 not connected 20 not connected
5 not connected 13 not connected 21 not connected
6 DDC Clock 14 + 5V Power 22 TDMS Clock Shield
7 DDC Data 15 Ground (+ 5 V, Analog H/
V Sync)
23 TDMS Clock +
8 Analog Vertical Sync 16 Hot Plug Detect 24 TDMA Clock -
C5 GND
3.2.6 RS232
The serial interface COM1 (X116) is fed out via a 9-pin standard DSUB connector. The signals comply with
the RS232 standard. The port address and the used interrupt are configured automatically, but can also be
set manually with the help of the BIOS setup if required.
15
6 9
X116
Fig.8: C6675_RS232 interface pin numbering
Table9: RS232 pin assignment
Pin Signal Description
1 DCD Data Carrier Detect
2 RxD Receive Data
3 TxD Transmit Data
4 DTR Data Terminal Ready
5 GND Ground
6 DSR Data Set Ready
7 RTS Request to Send
8 CTS Clear to Send
9 RI Ring Indicator

Product overview
C667516 Version: 1.0
3.2.7 DisplayPort
The industrial PC has a DisplayPort (X117) that enables connection of devices with DisplayPort. Additionally,
DVI signals can be transmitted via an adapter cable. The following ordering option is available to you for this
purpose:
• C9900-Z468: adapter cable DisplayPort to DVI, 40 cm
1
2
19
20
X117
Fig.9: C6675_DisplayPort pin numbering
Table10: Pin assignment of DisplayPort
Pin Connection Pin Connection
1 LVDS lane 0 + 2 Ground
3 LVDS lane 0 - 4 LVDS lane 1 +
5 Ground 6 LVDS lane 1 -
7 LVDS lane 2 + 8 Ground
9 LVDS lane 2 - 10 LVDS lane 3 +
11 Ground 12 LVDS lane 3 -
13 Config 1 14 Config 2
15 AUX channel + 16 Ground
17 AUX channel - 18 Hot-plug detection
19 Power supply: ground 20 Power supply: 3.3V / 500mA

Product overview
C6675 17Version: 1.0
3.2.8 Audio connections
The industrial PC has three audio connections with the Line In (X122), Line Out (X121) and microphone
input (X120) sockets.
X122
X121
X120
Fig.10: C6675_audio connections
The three sockets are brought out for 3.5 mm jack plugs. The pins of the jack plugs are assigned as follows:
L
R
GND
Fig.11: C6675_jack plug pin assignment
Table11: Jack plug pin assignment
Pin Connection
L Left sound signal
R Right sound signal
GND Common ground (return)

Product overview
C667518 Version: 1.0
3.3 Optional interfaces
Interface options are available to extend your industrial PC with additional interfaces beyond the basic
configuration.
Table12: Interface options
Ordering option Description
C9900-E195 2 USB ports of the motherboard, led out in a slot bracket
C9900-E216 2 USB ports of the motherboard led out in the front of a C66xx
C9900-E166 2 serial interfaces RS232 of the motherboard, led out with 2 D-sub-9 connectors in a slot
bracket
C9900-E203 1 serial interface RS232 of the motherboard, led out with a D-sub-9 connector in a slot
bracket
Table13: Module options
Ordering option Description
C9900-E209 Module for electrical isolation of a RS232 interface of the motherboard, with overvoltage
protection, D-sub, 9-pin, for mounting inside on slot bracket C9900-M568, C9900-M569
or in a C6640/C6650 on connector bracket C9900-M751. A slot bracket is required.
C9900-E210 Module to convert one serial RS232 interface of the motherboard into RS485,
configured as an end point without echo, D-sub, 9-pin, overvoltage protection, electrical
isolation, to be mounted inside the slot brackets C9900-M568, C9900-M569 or inside a
C6640/C6650 at the connector bracket C9900-M751. A slot bracket is required.
C9900-E211 Module for conversion of a RS232 interface of the motherboard to RS422, configured as
full duplex endpoint, D-Sub, 9-pin, overvoltage protection, electrical isolation, for
mounting inside at slot bracket C9900-M568, C9900-M569 or in a C6640/C6650 at
connector bracket C9900-M751. A slot bracket is required.
To be able to use the listed modules, you also need suitable slot or connector brackets. You can order the
brackets only in combination with one of the modules.
Table14: Slot options
Ordering option Description
C9900-M568 Slot bracket for a serial interface module C9900-E209, C9900-E210 or C9900-E211,
can only be ordered together with module
C9900-M569 Slot bracket for two serial interface modules C9900-E209, C9900-E210 or C9900-E211,
can only be ordered together with module

Product overview
C6675 19Version: 1.0
3.4 Name plate
The name plate provides information on the equipment fitted to your industrial PC.
1
2
3
4
5
67
8
910 11 12 13
16
15
171819
14
xxxxxxx
xxxxxxxxxxxx
xxxxxxxxxxxx
Fig.12: C6675_name plate
Table15: Key - C6675 name plate
No. Description
1 Manufacturer, including address
2 Serial number (BTN)
3 Model: The last four digits indicate the device generation
4 Date of manufacture
5 Mainboard
6 CPU
7 Main memory
8 Power supply
9 MAC addresses of the Ethernet interfaces (X112, X113)
10 Storage media
11 Storage media
12 DVD drive
13 Optional interfaces
14 FCC approval
15 Note: be sure to read the device manual.
16 Symbols
Note: here are the symbols applicable to the device such as CE, EAC, UKCA, . The
approvals of your device can be found on the name plate and in chapter 10.2 Approvals [}47].
17 Main switch for switching the PC on and off
18 Power supply connection
19 Connection section with standard interfaces and optional PCI and PCIe interfaces

Commissioning
C667520 Version: 1.0
4 Commissioning
To be able to use the industrial PC, you must first commission it. The first step is to transport the device to is
operating location and unpack it. This is followed by installing the device in the control cabinet, connecting
the cables and the power supply and finally switching on the industrial PC.
4.1 Transport and unpacking
Note the specified transport and storage conditions (see Chapter 9 Technical data [}45]).
Despite the robust design of the unit, the components are sensitive to strong vibrations and impacts.
Transporting a control cabinet with a built-in PC can result in excessive impact on the industrial PC. During
transport the device must therefore be protected from excessive mechanical stress. Appropriate packaging
of the industrial PC, in particular the original packaging, can improve the vibration resistance during
transport.
NOTE
Hardware damage due to condensation
Unfavorable weather conditions during transport can cause damage to the device.
• Protect the device against moisture (condensation) during transport in cold weather or in case of ex-
treme temperature fluctuations.
• Do not put the device into operation until it has slowly adjusted to the room temperature.
• Should condensation occur, wait for about 12 hours before switching the device on.
Unpacking
Proceed as follows to unpack the unit:
1. Remove packaging.
2. Keep the packaging for possible future transport.
3. Check your delivery for completeness by comparing it with your order.
4. Check the contents for visible shipping damage.
5. In case of discrepancies between the package contents and the order, or in case of transport damage,
please inform Beckhoff Service (see Chapter 10.1 Service and Support [}46]).