CANopen digital I/O (DIO) module * CANopen module with 8 digital inputs/outputs
The UC-CANOPEN-DIO8 is a CANopen digital I/O module for 8 digital inputs/outputs, which can be configured on a per-channel basis as inputs or as positive-switching high-side outputs. As a CANopen remote I/O module, it acquires and switches digital signals in CANopen-based PLC environments, machine controls, process controls, and test bench systems. CANopen communication in accordance with CiA 301, CiA 305, and CiA 401 supports standardized integration into industrial automation networks.
€ 289,77 Incl. 19% VAT plus shipping
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Product Description – CANopen Digital I/O Module
The UC-CANOPEN-DIO8 is a CANopen digital I/O DIO module with 8 digital input/output channels for industrial automation, machine control, process control and test bench applications. The 8 DIO channels can be configured individually as digital inputs or as plus‑switching high‑side outputs. As a CANopen remote I/O module, it acquires and switches digital signals in CANopen‑based control, fieldbus and PLC environments.
System Role in CANopen-Based Control and Fieldbus Architectures
The UC-CANOPEN-DIO8 acts as a decentralized digital I/O module between the field level and the CANopen controller. Via the CANopen interface, digital states are acquired, output states are set, and process data is integrated into a CANopen network. This makes the CANopen I/O module suitable for machines, systems and test benches where digital signals are not processed centrally in a controller but distributed within the control cabinet or modular system sections.
8 Digital Input/Output Channels for Signal Acquisition and DC Switching Tasks
The 8 digital input/output channels of the UC-CANOPEN-DIO8 can be configured individually as inputs or outputs. By default, the I/O channels are defined as inputs; the I/O direction can be configured via CANopen object 0x2400. As inputs, the channels acquire digital DC signals in the range of 3.3 V to 36 V DC. High and low levels are evaluated based on the reference voltage: an input is considered high when the input voltage reaches at least one third of the reference voltage. As outputs, the channels operate as plus‑switching high‑side drivers for DC switching tasks with a switching voltage of 5.5 V to 36 V DC, a maximum switching current of 3 A DC and a maximum switching power of 60 W DC.
Galvanic Isolation, Protection Functions and Diagnostics
For industrial use, the UC-CANOPEN-DIO8 combines digital signal processing with a galvanically isolated CANopen interface up to 500 V. The outputs feature overcurrent and overtemperature protection, and the inputs are ESD‑protected. Status LEDs for CANopen RUN, CANopen ERR, Power/Status and one LED per input or output channel support commissioning, diagnostics and service directly on the module. For channels configured as inputs, the channel LED indicates the signal state; for channels configured as outputs, it indicates the switching state of the respective output.
CANopen Communication According to CiA 301, CiA 305 and CiA 401
The CANopen interface supports CAN 2.0A and CAN 2.0B as well as CANopen profiles according to CiA 301, CiA 305 and CiA 401. This allows the UC-CANOPEN-DIO8 to be integrated into standardized CANopen networks. Control is performed via the CANopen object dictionary using SDOs and PDOs. Digital inputs can be read via 0x6000, digital outputs can be set via 0x6200, and the I/O direction of the channels can be configured via 0x2400. For PLC systems, the module is suitable wherever a CANopen interface or appropriate CANopen integration is available.
Process Data, Events and Defined Error Behavior
For process data exchange, the UC-CANopen series supports transmit and receive PDOs. Digital input data can be transmitted via TPDOs, and digital output data can be received via RPDOs. Depending on configuration, synchronous, asynchronous or event‑driven transmissions are possible. For digital inputs, filter, interrupt and input counter objects are available. For digital outputs, defined output states in error conditions can be configured via the Error‑Mode and Error‑Value objects. This allows the module to be integrated into CANopen systems in a controlled manner without claiming a safety‑related control function.
Typical Applications
- Decentralized digital signal acquisition in machines and systems
- CANopen remote I/O for modular machine control
- Process monitoring in manufacturing and automation environments
- Test bench and test system setups with digital input/output signals
- Acquisition of switches, sensor states, signaling contacts and status signals
- DC switching tasks via plus‑switching high‑side outputs within the permissible power range
- Integration of digital I/O signals into CANopen‑based PLC architectures
- System areas requiring defined output states in communication or device error conditions
Integration, Configuration and Operation
Node ID and baud rate are set via coding switches on the module. Supported baud rates range from 10 kbit/s to 1 Mbit/s, including autobaud. The UC-CANOPEN-DIO8 can be powered as a stand‑alone device with +7 V DC to +24 V DC or operated in a module group. For modular control cabinet installations, an optional DIN‑rail bus connector is available, allowing CAN‑High, CAN‑Low, +24 V and GND to be routed between multiple DEDITEC CANopen modules. The 35 x 7.5 mm DIN‑rail mount, pluggable terminal connectors and channel‑specific status indicators support clear wiring and traceable commissioning in the control cabinet.
Made in Germany
DEDITEC develops and manufactures industrial I/O, control and measurement modules in Germany. For the UC-CANOPEN-DIO8, Made in Germany means product‑focused development, transparent technical documentation and a design intended for long‑term use in industrial applications. Combined with standardized CANopen communication, freely configurable digital I/O channels, galvanically isolated bus connection and DIN‑rail mounting, the module is suitable for decentralized digital I/O tasks in mechanical engineering, process control and test bench technology.
Technical Data
The UC-CANOPEN-DIO8 is a CANopen digital I/O DIO module with 8 digital input/output channels for decentralized signal acquisition and DC switching tasks in CANopen-based automation networks. The channels can be configured individually as inputs or outputs, making them suitable for flexible I/O tasks in machine control, process control and test bench applications.
At a Glance
- CANopen digital I/O DIO module with 8 digital input/output channels
- 8 DIO channels, individually configurable as input or output via CAN
- Digital inputs for 3.3 V to 36 V DC
- Reference voltage input for determining high/low switching thresholds
- Plus-switching high-side outputs for 5.5 V to 36 V DC
- Max. switching current per output: 3 A DC
- Max. switching power per output: 60 W DC
- CANopen according to CiA 301, CiA 305 and CiA 401
- CAN 2.0A or CAN 2.0B
- Galvanically isolated CANopen interface up to 500 V
- Baud rates from 10 kbit/s to 1 Mbit/s including autobaud
- Node ID and baud rate configurable via coding switches
- Supply as stand-alone device: +7 V DC to +24 V DC
- DIN rail mounting 35 x 7.5 mm
- Optional module linking via DIN rail bus connector
Interface and CANopen Communication
- Interface: CANopen
- CANopen profiles: CiA 301, CiA 305 and CiA 401
- CAN support: CAN 2.0A or CAN 2.0B
- Galvanic isolation of CANopen interface: up to 500 V
- Baud rates: 1 Mbit/s, 800 kbit/s, 500 kbit/s, 250 kbit/s, 125 kbit/s, 100 kbit/s, 50 kbit/s, 20 kbit/s and 10 kbit/s
- Autobaud supported
- Node ID and baud rate adjustable via coding switches
- Integration via CANopen object dictionary, SDOs and PDOs
Digital Input/Output Channels
- Number of DIO channels: 8
- Channel direction: individually configurable as input or output
- Configuration of I/O direction via object 0x2400 I/O Port Direction
- Digital inputs readable via 0x6000 Read Input 8 Bit
- Digital outputs switchable via 0x6200 Write Output 8 Bit
Digital Inputs
- Input voltage: 3.3 V to 36 V DC
- Input resistance: > 1 MΩ
- ESD protection: +500 V
- Input high: input voltage ≥ 1/3 of reference voltage
- Input low: input voltage < 1/3 of reference voltage
- Global input sampling rate adjustable via 0x2401
- 16-bit input counters available via 0x2410 and 0x2411
- Input filters and interrupt masks for digital state changes configurable
Digital Outputs
- Output type: high-side driver, plus-switching
- Switching voltage: 5.5 V to 36 V DC
- Max. switching current: 3 A DC
- Max. switching power: 60 W DC
- Protection functions: overcurrent protection and overtemperature protection
- Output states settable via 0x6200
- Configurable error behavior via 0x6206 Error Mode Output and 0x6207 Error Value Output
CANopen Process Data and Integration
- Transmit PDOs for digital input data
- Receive PDOs for digital output data
- Synchronous, asynchronous and event-driven PDO transmission supported
- Standard mapping for digital inputs via 0x6000
- Standard mapping for digital outputs via 0x6200
- Suitable for CANopen-based PLC, machine control and remote I/O architectures
- General
- Technical data
- Configuration
- Controling
- Connection examples
- Connectors
- Downloads & manuals
- Scope of delivery
- Accessories
Digital inputs
Digital signal states can be recorded with our optocoupler inputs. Input and output circuits are electrically isolated from each other up to 2.5 kV.
Digital-in input filter
With our digital-in modules, an input filter can be set in a time interval of 1 ms...255 ms for filtering interference pulses.
Counter
Each input has a 16-bit counter.
Detection of state changes
Status changes that occur between readout cycles are reliably recorded by internal status change flip-flops and can be read out separately via software. In addition, such an event is signaled by a status LED.
Relay
Our digital outputs use power relays with normally open (NO) function.
All our relays are equipped with a software-based timeout protection function to protect against damage caused, for example, by contact breakage to the control PC.
Plug connector
A screwless system from the manufacturer WAGO® Kontakttechnik is used as the connector. The 1-wire female connectors are 100 % protected against mismating and have an ejection and locking mechanism.
Easy installation thanks to DIN rail bus
Thanks to the practical bus connector, which is clipped into the DIN rail, individual modules of a system can be added or replaced very easily. This Plug'n Play principle makes commissioning easier for you and eliminates the need for tedious wiring.
LEDs
Each digital input and output has a separate LED that lights up when the signal status is active. The status of the operating voltage, communication with the interface, error events or the occurrence of a timeout can also be displayed.
General information
| Power supply as a stand-alone device | +7 V DC ... +24 V DC |
|---|---|
| Power supply as a combined device | Externally via the DIN rail connector |
| LEDs |
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| Bus connector (optional) |
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| DIN rail mounting | 35 x 7,5 mm |
| Operating temperature | +10 °C ... +50 °C |
Interfaces
CANopen Interface
| CANopen interface |
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|---|---|
| NODE-ID | Configurable via coding switch |
| Baud rates |
Configurable via coding switch
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Connectors
| Plug connector 16-pin |
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|---|
| Plug connector 5-pin |
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Configuration of CANopen modules
The CANopen interface is configured via the CANopen bus of the module and via three rotary coding switches located on the front of the module.
The upper and middle rotary coding switches determine the node ID, the lower one the baud rate.
Rotary coding switch
The upper rotary coding switch determines the high-order bits and the middle switch the low-order bits.
The lower rotary coding switch is used to set the baud rate, the following is a list of all settings:
Meaning of lower rotary switch:
| Value | Operating mode | Description |
| 0 | CANopen | Bitrate = 1000 kBit/s |
| 1 | CANopen | Bitrate = 800 kBit/s |
| 2 | CANopen | Bitrate = 500 kBit/s |
| 3 | CANopen | Bitrate = 250 kBit/s |
| 4 | CANopen | Bitrate = 125 kBit/s |
| 5 | CANopen | Bitrate = 100 kBit/s |
| 6 | CANopen | Bitrate = 50 kBit/s |
| 7 | CANopen | Bitrate = 20 kBit/s |
| 8 | CANopen | Bitrate = 10 kBit/s |
| 9 | CANopen | Autobaud + LSS |
| A | CANopen | Autobaud |
| B | CANopen Bootloader | Bitrate = 250 kBit/s |
| C | CANopen Bootloader | Bitrate = 1000 kBit/s, Node ID = 0x7e |
| D | CAN 2.0 A/B | Use settings from EEPROM |
| E | CAN 2.0 A/B | Bitrate = 1000 kBit/s, CAN ID = 0x100 |
| F | CANopen | Bitrate = 1000 kBit/s, CAN ID = 0x7e |
Control of CANopen modules
The CANopen modules are controlled via a so-called object directory. Standardized communication objects such as PDOs and SDOs are used for this purpose.
EDS
Select the EDS file for your module to load all the registers required for the controller.
Read register
Under the "Device Profile Segment" tab, you will find all the registers for controlling the module.
In register 0x6200 it is possible to write or read the states of the relays.
In the example, the status of the first 8 relays is read.
Write register
Under the "Device Profile Segment" tab, you will find all the registers for controlling the module.
In register 0x6200 it is possible to write or read the states of the relays.
In the example, the status of the first 8 relays is written.
Connection example DIO Input:
Connection example DIO Output:
Screwless connector system
The customer-side connection wiring of the inputs and outputs is carried out using screwless, pluggable terminal strips. The conductor connection is made using a so-called actuating tool.
A locking and ejecting mechanism facilitates the insertion and removal of the complete terminal strip.
Handling:
Steps 1-5
Step 1
See the scope of delivery for the operating tool.
Step 2
Insert the operating tool firmly into the side opening in the direction of the conductor connection.
Step 3
Now insert the stripped conductor into the open clamp contact.
Step 4
Pull out the operating tool again.
Step 5
Check that the conductor is properly connected. It should now no longer be possible to pull it out easily.
Manual
Manual UC-CANopen modules
Quickstart - Hardware description - CANopen protocol
- Safety instructions
- Connecting the power supply
- Installation
- Connecting the I/O connectors
Hardware description
- List of technical data
- Definition of the LEDs
- Pin assignment of the connectors
- Connection examples
CANopen protocol
- Identifier
- Network management
- Information on communication, manufacturer and device profile
- Access via SDOs
- Device monitoring
- Information on the CAN bus length
UC-CANopen firmware
UC-CANopen firmware files
This ZIP file contains all firmware files for the UC-CANopen series.
You can use these files to renew or update the firmware of your CANopen module.
CANopen EDS files
CANopen EDS files
This ZIP file contains all EDS files for the CANopen modules.
The EDS files are used to control a CANopen module.
5-pin plug connector
Enables the power supply to be connected to the DEDITEC module.
- Type: Phoenix Contact® - 1876343
- 100 % mismatch protected
- For all conductor types from 0.2 mm² to 2.5 mm²
16-pin plug connector
Required for connecting inputs and outputs of the DEDITEC module.
- Type: WAGO® 713-1108/037-000
- Plug-in female multipoint connector with locking mechanism
- 100 % mismatch protected
- 1-wire connection for all conductor types up to 1.5 mm²
Actuating tool for Wago connectors
Used to open and close the terminal contacts on the WAGO® connectors.
- Type: WAGO® - 734-231
DIN-Rail connector
The DIN rail connector is a single BUS segment that enables connection to other modules. It is clipped into the top-hat rail and plugged onto the side of an existing DIN rail connector.
- Type: Phoenix Contact® - 2203852
- Connection of a NET or UC module
- For expanding the NET or UC bus system
- 1 Piece
5-pin plug connector
Enables the power supply to be connected to the DEDITEC module.
- Type: Phoenix Contact® - 1876343
- 100 % mismatch protected
- For all conductor types from 0.2 mm² to 2.5 mm²
16-pin plug connector
Required for connecting inputs and outputs of the DEDITEC module.
- Type: WAGO® 713-1108/037-000
- Plug-in female multipoint connector with locking mechanism
- 100 % mismatch protected
- 1-wire connection for all conductor types up to 1.5 mm²
Actuating tool for Wago connectors
Used to open and close the terminal contacts on the WAGO® connectors.
- Type: WAGO® - 734-231
DIN-Rail connector
The DIN rail connector is a single BUS segment that enables connection to other modules. It is clipped into the top-hat rail and plugged onto the side of an existing DIN rail connector.
- Type: Phoenix Contact® - 2203852
- Connection of a NET or UC module
- For expanding the NET or UC bus system
- 1 Piece
Strain relief plate for 16 or 18-pin Wago connectors
The strain relief plate is pushed onto the center of the female connector and enables the connected cables or strands to be fixed in place.
- Type: WAGO® - 713-127
- Strain relief for the connection wiring
- Suitable for 16 or 18-pole female connectors
- Slide onto the female connector from the side
Top hat rail
Top-hat rail for mounting our control technology modules.
- DIN rail according to DIN EN 50022
- Type: Phoenix Contact® - 1208131
- Dimensions in mm: 450 x 35 x 7.5 (L x W x H)
24V/2A power supply unit for top-hat rail mounting
The DR-4524 from Mean Well is a 48W power supply unit for DIN rail mounting for industrial applications. It offers protection against short circuit, overload, overvoltage and overheating.
- Input voltage range: 85 V.. 264 V AC / 120 V DC ... 370 V DC
- Output voltage: 24 V DC
- Output current: 2 A
- Rated power: 48 W
Typical Application Areas of the CANopen Digital I/O DIO Module
The UC-CANOPEN-DIO8 is suitable for industrial applications where digital signals need to be acquired, transmitted and switched via a CANopen network. With 8 DIO channels that can be configured individually as inputs or outputs, plus‑switching high‑side outputs and CANopen communication according to CiA 301, CiA 305 and CiA 401, the module is particularly suitable for decentralized I/O tasks in machines, systems, control cabinets and test benches.
Suitable for
- Machine and plant engineering with CANopen‑based control architecture
- Industrial automation and decentralized digital I/O acquisition
- Control cabinet construction and compact DIN‑rail installations
- Test benches, test systems and end‑of‑line testing
- Process control and system monitoring with digital signals
- CANopen remote I/O structures in modular machine concepts
- PLC environments with existing CANopen support
- Special‑purpose machinery and technical automation solutions
Typical Applications
- Acquisition of switching states, limit switches, sensor states and signaling contacts
- Integration of digital input and output signals into existing CANopen networks
- Decentralized signal processing in distributed automation and control systems
- Forwarding of state and switching signals to CANopen‑based controllers
- Switching DC loads via plus‑switching high‑side outputs within the permissible power range
- Monitoring and control of digital signals in machines, systems and test environments
- Building compact CANopen remote I/O points in control cabinets
- Expanding existing automation networks with 8 digital input/output channels
Typical Signal and Switching Tasks
- Digital DC signal acquisition in the range of 3.3 V to 36 V DC
- Plus‑switching DC outputs for switching voltages from 5.5 V to 36 V DC
- Channel‑wise use as input or output depending on machine or system logic
- State acquisition with configurable input processing
- Output switching via CANopen objects and PDO/SDO communication
- Configurable output states in error conditions via CANopen objects
- Distributed digital I/O tasks in CANopen‑based machine and process architectures
Comparison: UC-CANOPEN-DIO8 as CANopen Digital I/O DIO Module
The following comparison classifies the UC-CANOPEN-DIO8 technically: as a compact CANopen digital I/O DIO module with 8 digital input/output channels, per‑channel configuration as input or output, CANopen communication according to CiA 301, CiA 305 and CiA 401, and plus‑switching high‑side outputs for industrial DC switching tasks. The table is designed for quick evaluation for mechanical engineering, control cabinet construction, test bench technology, process control and CANopen‑based PLC environments.
Product Type, System Role and CANopen Integration |
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| Feature | Market Comparison | Product | Practical Benefit |
|---|---|---|---|
| Product Type | Many digital CANopen I/O modules are designed either with fixed input/output combinations or broader mixed functions. | UC-CANOPEN-DIO8 as CANopen digital I/O DIO module with 8 digital input/output channels. | Suitable when digital signals need to be integrated compactly and clearly as CANopen remote I/O in machines, systems or test benches. |
| Channel Flexibility | In many I/O modules, channel direction is fixed, e.g., pure input or pure output groups. | 8 DIO channels, individually configurable as digital input or digital output. | I/O assignment can be adapted to machine, test bench or control cabinet logic without requiring different modules for each task. |
| CANopen Profiles | Not every CANopen I/O module is clearly documented using standardized CANopen profiles. | CANopen according to CiA 301, CiA 305 and CiA 401. | Supports standardized integration of digital I/O signals into CANopen‑based control and fieldbus architectures. |
| PLC Integration | Integration of digital I/O modules depends heavily on the controller’s bus and profile support. | Integration into CANopen‑based PLC environments via object dictionary, SDOs and PDOs. | Digital input and output signals can be integrated into control systems where CANopen support is available. |
CANopen Communication and Commissioning |
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| Feature | Market Comparison | Product | Practical Benefit |
| CAN Support | CANopen modules differ by supported CAN version, baud rate and configuration logic. | CAN 2.0A or CAN 2.0B with baud rates from 10 kbit/s to 1 Mbit/s. | Simplifies adaptation to existing CANopen networks with different bus speeds. |
| Autobaud | On simple CANopen modules, baud rate often must be set manually to match the network. | Autobaud supported in addition to fixed baud rates. | Can simplify commissioning and module replacement in existing CANopen networks. |
| Node ID and Baud Rate | Addressing and bus parameters are set via software, DIP switches or vendor‑specific methods. | Node ID and baud rate configurable via coding switches. | Supports traceable commissioning directly on the module and reduces configuration effort in control cabinets. |
| Galvanic Isolation | Galvanic isolation on the bus side is not always present in compact I/O modules. | CANopen interface galvanically isolated up to 500 V. | Helps with potential differences and supports robust communication in industrial CANopen installations. |
Digital Inputs/Outputs and Signal Processing |
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| Feature | Market Comparison | Product | Practical Benefit |
| Digital Inputs | Digital CANopen input modules differ in input voltage, switching threshold logic and configurability. | Digital DC inputs for 3.3 V to 36 V DC with reference voltage for high/low evaluation. | Switch states, sensor states, signaling contacts and digital process signals can be acquired decentrally via CANopen. |
| Digital Outputs | Different output types exist on the market, e.g., relay, transistor or high‑side outputs. | Plus‑switching high‑side outputs for 5.5 V to 36 V DC, max. 3 A DC and max. 60 W DC per output. | Suitable for DC switching tasks within the permissible power range without misclassifying the product as a relay module. |
| Output Protection Functions | Protection functions vary by output type and manufacturer. | Outputs with overcurrent and overtemperature protection. | Supports more robust digital DC switching tasks in machine and system environments. |
| Defined Output Behavior | Error behavior is not always configurable in digital I/O modules. | Output behavior in error conditions configurable via CANopen objects Error Mode Output and Error Value Output. | Enables defined output states during communication or device errors without claiming safety‑related control functionality. |
Mounting, Module Linking and Manufacturer Quality |
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| Feature | Market Comparison | Product | Practical Benefit |
| Control Cabinet Integration | Depending on design, I/O modules may require additional adapters or special mounting concepts. | DIN rail mounting 35 x 7.5 mm. | Simplifies integration as a compact CANopen DIN‑rail module in control cabinets, test fields and decentralized I/O stations. |
| Module Linking | Bus and supply concepts vary across manufacturers in modular CANopen installations. | Optional DIN rail bus connector for linking multiple DEDITEC CANopen modules with CAN‑High, CAN‑Low, +24 V and GND. | Supports building modular CANopen stations in control cabinets and reduces wiring effort between compatible modules. |
| Power Supply | Industrial I/O modules often target typical 24 V DC environments; actual ranges vary. | Supply as stand‑alone device with +7 V DC to +24 V DC. | Enables use in typical DC supply concepts for control cabinets, test benches and machine control within the documented voltage range. |
| Made in Germany | Industrial I/O modules are developed and manufactured regionally or internationally depending on the provider. | DEDITEC module with Made in Germany quality reference. | Supports B2B requirements for traceable development, documented product data and long‑term maintainable automation solutions. |
Häufig gestellte Fragen (FAQ)
HOW ARE ERROR CONDITIONS HANDLED IN A CANOPEN NETWORK?
The UC-CANOPEN-DIO8 supports standardized CANopen network management (NMT) states as well as error handling mechanisms. In case of communication issues, it can enter defined safe states.
WHERE CAN I FIND INFORMATION ABOUT COMMISSIONING THE UC-CANOPEN-DIO8?
All important information regarding commissioning, wiring, configuration, and initial setup is described in the module manual. The document can be downloaded via the "Downloads and Manuals" section on the product page or through the central download area of the homepage.
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