Product description
Functions and operation modes
Hans Turck GmbH & Co. KG | T +49 208 4952-0 | more@turck.com | www.turck.com
07.00 | 2022/09 | 12
4.3 Operating principle
The interfaces are provided with a multiprotocol fieldbus interface for Modbus TCP, EtherNet/IP
and PROFINET. The fieldbus interface connects the RFID system to an (existing) fieldbus system
as an EtherNet/IP device, Modbus TCP slave or PROFINET device. The interfaces are provided
with a fieldbus interface and fieldbus-independent I/O electronics with an RFID interface. Dur-
ing operation the process data is exchanged between the fieldbus and RFID system and also
diagnostic information generated for the controller. The read/write devices are connected to
the interfaces via the RFID interfaces. The interface signals of up to four sensors and actuators
can also be processed via four universal digital channels.
4.4 Functions and operation modes
The compact RFID interfaces transfer data between the RFID level (read/write device and tag)
and the control level. HF read/write heads and UHF readers can be connected to the RFID chan-
nels. Parallel operation of HF read/write heads and UHF readers on the same device is also pos-
sible.
The device enables the execution of different commands such as Inventory (single-tag and
multitag applications), read, write and password protection. Additional functions are provided
to optimize the speed, for the system to self trigger as well as for backup and restore opera-
tions. In every write or read cycle, up to 128 bytes can be transferred on each channel to the
controller. The data must be fragmented in order to transfer more than 128 bytes.
Sensors and actuators can be connected to the universal digital channels. In all, up to four 3-
wire PNP sensors or four PNP DC actuators can be connected per input or output. The
maximum output current per channel is 0.5A.
4.4.1 Multiprotocol technology
The device can be used in the following three Ethernet protocols:
n Modbus TCP
n EtherNet/IP
n PROFINET
The required Ethernet protocol can be detected automatically or selected manually.
Automatic protocol detection
The automatic protocol detection enables the multiprotocol device to run on all three of the
above Ethernet systems without any intervention by the user (i.e. without any reprogramming).
The system detects during the startup phase (“snooping”) of the system the Ethernet protocol
requested to establish connection. The other protocols can only be used for read access to the
device.
Manual protocol selection
The user can also select the protocol manually. In this case the snooping phase is skipped and
the device is permanently set to the selected protocol. The other protocols can only be used for
read access to the device.
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