Leuze Launches RFID Readers With IO-Link and NFC Functionality

RFID tags are commonly used in automation to track assemblies, parts, or pallets throughout the production process. RFID works by sending radio waves to a tag, which consists of a microchip that is powered when it receives the radio waves. The value written on the tag is read by the reader when in range. Recently, Leuze, a manufacturer of switching and measuring sensors, safety devices, and networking technology, announced the release of a new line of RFID readers, the RDH 100 and the RDH 200.

The RDH 100 (left) and 200 series RFID readers from Leuze. Image used courtesy of Leuze

RDH 100 Series

When your application requires a compact, rugged solution for reading RFID tags, Leuze’s new RDH 100 series might be what you are looking for. The RDH 100 series is a compact cylindrical RFID reader capable of reading tags up to 60 mm away. It features a diameter of 30 mm and can be purchased with a metal sleeve. The reader is IP67-rated and has an operating temperature of -32 to 60 °C, which allows it to be used in harsh environments.

The RDH 100 features a compact 30 mm diameter for use in tight spaces. Image used courtesy of Leuze

RDH 200 Series With NFC

When your application requires a little more range, Leuze’s new RDH 200 series has options with reading ranges out to 100 mm. The RDH 200 uses high-frequency radio waves to support the longer reading ranges while still boasting a compact size of 68 x 68 x 42 mm. The metal housing of the RDH 200 consists of mounting features that allow the RDH 200 to be mounted to virtually any surface, including metallic surfaces.

Near Field Communication (NFC) Functionality

If your application requires a little more wireless transfer of data, the RDH 200 has NFC functionality. NFC is used in today’s smartphones for wireless payment, Bluetooth connection, and opening hotel doors. It can also be used in a machining center to identify fixtures for specific machines or to authenticate personnel. With the RDH 200, NFC enables authentication or data transfer from the NFC tag to the control system.

The RDH 200 features NFC functionality for authentication via tags. Image used courtesy of Leuze

IO-Link Communication

Both series are fully equipped with IO-Link communication. This makes communicating with either reader a snap. Users simply plug the RDH 100 or RDH 200 into an IO-Link master and can read tags, configure the reader, or monitor diagnostic information.

Tracking Your System

With the RDH 100 and RDH 200 series RFID readers from Leuze, users can add part tracking or fixture authentication to a system. RFID and NFC systems are a great way to track and ensure data is maintained during the production cycle.

In pallet and conveyor transport systems, pallets have tags mounted on them, and as they move from station to station, a reader will read the pallet data or number from the tag. This number is transferred to the control system and then used as an identifier or key when requesting data from a database. As the assembly or part is worked on, the data is updated and sent back to the database using the same key.

Machining centers have specific fixtures and can often only be installed in one machine. Fixtures are often built in another area of the plant and then released to the shop floor to be installed in the specific machining center. By using an NFC tag and reader, the machining center can authenticate the fixture before production starts.