KEYENCE DL-PN1 User Manual

Dl-pn1, Instruction manual, Profinet communication unit

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PROFINET Communication Unit


Instruction Manual

Read this manual before use.

Keep this manual in a safe place for future reference.


The following symbols alert you to matters concerning the prevention of injury and product


General Precautions

Precautions for Use

Precautions for Installation

UL Certification

This product is an UL/C-UL Listed product.

• UL File No.


• Category NRAQ,


Be sure to consider the following specifications when using this product as an UL/C-UL

Listed Product.

• Use the power supply with Class 2 output defined in NFPA70 (NEC: National Electrical


• Use this product under pollution degree 2.

• This product is an open type device. Therefore, it must be installed in an enclosure with

IP54 or higher. (e.g. Industrial control panel)

CE Marking

Keyence Corporation has confirmed that this product complies with the essential

requirements of the applicable EC Directive, based on the following specifications. Be sure

to consider the following specifications when using this product in the Member State of

European Union.

EMC Directive

EMI: EN55011, Class A

EMS: EN61000-6-2

• Use a STP (shielded twisted pair) cable for connection to the network.

These specifications do not give any guarantee that the end-product with this product

incorporated complies with the essential requirements of EMC Directive. The

manufacturer of the end-product is solely responsible for the compliance on the

end-product itself according to EMC Directive.

The DL-PN1 is an interface unit, which enables sensors to connect to the PROFINET.

The characteristics of the DL-PN1 are shown below.

• Supports data I/O communication. The device can send and receive data without a

ladder program.

• Supports record data communication. The device can read and write sensor amp

settings and its current status, and issue commands to the sensor amp.

The DL-PN1 can connect to up to 15 units of sensor amplifiers (a single main unit and

multiple expansion units) which support D-bus. (“D-bus” is the name of KEYENCE’s

wiring-saving system for sensor amplifiers.)

Different types of sensor amplifiers with D-bus support can be connected to a single DL-PN1


How many and what types of sensor amplifiers can be connected depends on the sensor

amplifiers or units to be connected. Please inquire for details.

It indicates a hazardous situation which, if not avoided, could result in

death or serious injury.

It indicates a hazardous situation which, if not avoided, could result in

minor or moderate injury.

It indicates a situation which, if not avoided, could result in product

damage as well as property damage.

It indicates cautions and limitations that must be followed during


It indicates additional information on proper operation.

Safety Information for DL-PN1

• Do not use this product for the purpose to protect a human body or

part of a human body.

• This product is not intended for use as an explosion-proof product.

Do not use this product in a hazardous location and/or potentially

explosive atmosphere.

• Before and while operating this product, confirm that it provides its

functions and performance correctly.

• Implement sufficient safety measures to prevent human and

physical damages in case this product fails.

• Do not expose equipment, including peripherals, to rapid

temperature changes. Equipment failure may result from

condensation build up.

• Be aware that the product functions and performance are not

warranted if the product is used outside the range of stated

specifications or is modified by the customer.

• Combining this product with other equipment requires sufficient

consideration because the proper functions and performance may

not be provided depending on the environment.









• To avoid injury or failure, turn off the power immediately in the

following cases.

- Water or foreign matter entered the main unit.

- The case is broken, for example if it is dropped.

- Smoke or unusual smell is emitted from the product.

• Use the correct power voltage. Failure to observe may result in

injury, or failure.

• Do not disassemble or modify this product. Failure to observe may

result in injury.

Do not turn off the power while you are setting any item. Doing this

may cause loss of data settings.

For safe, trouble-free operation of this product, the product must not

be installed in the following locations:

- Humid, dusty, or poorly ventilated.

- Exposed to direct sunlight or heating source.

- Exposed to corrosive or flammable gases.

- Exposed directly to vibration or shock.

- Exposed to water, oil, or chemical splashes.

- Exposed to static electricity.

If this product is installed in a location near a noise source, e.g. power

source or high-voltage line, it may malfunction or fail. Take protective

measures, such as using a noise filter including a supplied ferrite core

or running the cables separately.

* Use a ferrite core for a power cable of a sensor amplifier with D-bus

support which supplies power for the unit (3 turns).

Precautions on Regulations and Standards

Characteristics of the DL-PN1