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Summary of Contents for IFM DTI420
- Page 1 Operating instructions RF-identification system DTI420 DTI421 Read/write head...
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Page 2: Table Of Contents
DTI420 DTI421 Contents Preliminary note ............. -
Page 3: Preliminary Note
If the warning is not observed, damage to property is possible. 1.3 Legal and copyright information © All rights reserved by ifm electronic gmbh. No part of these instructions may be reproduced and used without the consent of ifm electronic gmbh. -
Page 4: Safety Instructions
DTI420 DTI421 2 Safety instructions • The unit described is a subcomponent for integration into a system. – The system architect is responsible for the safety of the system. – The system architect undertakes to perform a risk assessment and to create documentation in accordance with legal and normative requirements to be provided to the operator and user of the system. -
Page 5: Cybersecurity
DTI420 DTI421 WARNING Operation of this device can cause radio interference in residential areas. w The device emits high-frequency electromagnetic waves that may interfere with the operation of electronic devices in the vicinity, including pacemakers, hearing aids and defibrillators. u Due to human exposure regulations, a minimum distance of 20 cm must be maintained between the device and persons. -
Page 6: Intended Use
DTI420 DTI421 3 Intended use The read/write head reads and writes ID tags without contact. The data is made available as process data via the IO-Link interface. 3.1 Application area The device safety is rated for use under the following operating conditions: •... -
Page 7: Items Supplied
DTI420 DTI421 4 Items supplied • Read/write head The device is supplied without installation and connection accessories. Available accessories: www.ifm.com. The optimum function is not ensured when using components from other manufacturers. -
Page 8: Function
DTI420 DTI421 5 Function 5.1 ID tags ID tags are passively operated without a battery. The energy required for operation is provided by the read/write head. The energy is provided via an inductive coupling. The integrated antenna coil in the read/write head generates a magnetic field which partly penetrates the antenna coil of the ID tag. - Page 9 DTI420 DTI421 Some ID tags are not recognised by the device if an incorrect password has been saved with the IO-Link parameter [ID tag password] and - the [Auto-read data”/“Auto-write data] operating mode is used or - the [ID tag history] records the user data.
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Page 10: Device Overview
Operation of the unit via the IO-Link interface requires an IO-Link master. With a PC, suitable IO-Link software and an IO-Link adapter cable, communication is possible while the system is not in operation. IODD required to configure the unit is available at www.ifm.com. -
Page 11: Installation
DTI420 DTI421 6 Installation 6.1 Notes on the unit installation When mounting several RFID units adhere to the minimum distances between the systems. Flush mounting of a read/write head in metal reduces the read/write distance. Device performance can be affected if positioned in the immediate vicinity of powerful HF emission sources such as welding transformers or converters. -
Page 12: Install Device
DTI420 DTI421 DTI421 Fig. 2: DTI421 1 Sensing face 6.4 Install device u Fix the device using the supplied nuts (M18). DTI420 Fig. 3: Flush mounting DTI421 Fig. 4: Non flush mounting 6.5 Mounting distances DTI420... -
Page 13: Positioning Of The Id Tags
DTI420 DTI421 Operating mode Distance side (A) Distance front (B) For reading and writing ≥ 60 mm ≥ 100 mm DTI421 Operating mode Distance side (A) Distance front (B) For reading and writing ≥ 90 mm ≥ 180 mm 6.6 Positioning of the ID tags The sensing face marks the centre of the integrated antenna coil of the read/write head. - Page 14 DTI420 DTI421 DTI421 Fig. 6: Position the ID tag u Align the ID tag on the central axis of the antenna of the unit. ID tag Type Distance read/write head (D) in plastic E80371 40 mm The indications in the table apply to static read/write operations.
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Page 15: Electrical Connection
DTI420 DTI421 7 Electrical connection The device must be connected by a qualified electrician. u Disconnect power before connecting the device. Protection class III device (IEC 61010-2-201 chap. 6.5.2.101.4). The electrical supply must meet the following requirements: • Use of a power supply with limited output voltage (ES1 according to IEC 62368-1) •... - Page 16 DTI420 DTI421 Information on available sockets see: www.ifm.com.
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Page 17: Operating And Display Elements
DTI420 DTI421 8 Operating and display elements DTI420 DTI421 1 LED green: operating voltage LED yellow: ID tag State Description green operating voltage OK operating voltage missing flashing slowly deactivated yellow on (permanently) ID tag detected on (pulse) ID tag read/written successfully... -
Page 18: Parameter Setting
DTI420 DTI421 9 Parameter setting The parameters of the device are set using a software via IO-Link (for example ifm moneo configure SA). More information can be found in the IODD of the unit: www.ifm.com 9.1 Parameter 9.1.1 Data block size The memory area of an ISO 15693 ID tag is organised in data blocks. The [Data block size] parameter specifies the size of a data block. -
Page 19: Address For Automatic Read/Write
DTI420 DTI421 Example If the data hold time is set to 500 ms, the UID is transmitted via IO-Link for at least 500 ms. This also applies if the ID tag is no longer within the range of the device. - Page 20 DTI420 DTI421 Status bit Value Description [Antenna deactivated] Antenna activated, device ready to receive Antenna deactivated, device not ready to receive [Tag present] No ID tag in the range of the device ID tag detected [Cmd End] Read or write operation not yet started or active...
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Page 21: Operation
DTI420 DTI421 10 Operation The device supports several operation modes that are selected with the command value in the process data output image: Operating mode Command value Description [Read UID] 0x00 Operating mode Read UID (Ò / 21) [Auto-read data] 0x01 Operating mode Auto read data (Ò / 22) -
Page 22: Operating Mode Auto Read Data
DTI420 DTI421 Byte Process data output Process data input Ignored UID 5 Ignored UID 6 Ignored UID 7 Ignored UID 8 Ignored UID 9 Ignored 0x00 Ignored 0x00 Ignored 0x00 Ignored 0x00 Ignored 0x00 Ignored 0x00 Ignored 0x00 Ignored 0x00... -
Page 23: Operating Mode Auto Write Data
DTI420 DTI421 The shorter the data length set for [Auto-Read/Write Data Length], the less time is needed for reading. The time that the ID tag remains in the device’s detection range is correspondingly shorter. Byte Process data output Process data input... - Page 24 DTI420 DTI421 Max. 28 bytes become defined in the process data output image (bytes 0 to 27). For memory areas with a data length of < 28 bytes the remaining data is ignored and not written to the ID tag.
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Page 25: Operating Mode Read Data
DTI420 DTI421 10.5 Operating mode Read data In the [Read data] operating mode, large amounts of data can be read with a single read operation. The data is sequentially transferred from the device to the controller. Transfer data from the device to the controller: u Use the controller to set the following values in the process data output: The command value 0x03 , the address (16 bits) and the data length (16 bits). -
Page 26: Example Successful Reading Of Data
DTI420 DTI421 Byte Process data output Process data input Ignored Data 23 Ignored Data 24 Ignored Data 25 Ignored Data 26 Ignored Data 27 Block counter Block counter Ignored error value 10.5.1 Example successful reading of data The example shows that reading of the data was successful. -
Page 27: Operating Mode Write Data
DTI420 DTI421 Device acknowledges 0x03 0x0012 0x0023 0x00 0x00 command 0x03 0x00 0x00 0x00 Device sets first byte 0x03 0x0012 0x0023 0x00 0x00 of the data 0x03 Data 0x00 0x00 Controller acknowl- 0x03 0x0012 0x0023 0x00 0x01 edges receipt of the... -
Page 28: Example Successful Writing Of Data
DTI420 DTI421 Process data output when Process data output during Byte Process data input starting the write operation data transfer Length (low byte) Data 5 0x00 Ignored Data 6 0x00 Ignored Data 7 0x00 Ignored Data 8 0x00 Ignored Data 9... -
Page 29: Example Unsuccessful Writing Of Data
DTI420 DTI421 Device acknowledges 0x04 Data for ID tag 0x02 data and terminates 0x04 0x00 0x02 0x00 writing Controller withdraws 0x00 0x0000 0x0000 0x00 0x00 command value 0x04 0x00 0x02 0x00 Device carries out 0x00 0x0000 0x0000 0x00 0x00 preset command... - Page 30 DTI420 DTI421 Value Name Description 0x11 COMMAND_NO_RESPONSE • ID tag does not respond. • ID tag outside the range. • ID tag does not support the operation or wrong parameter (e.g. the data block is too big). 0x12 COMMAND_RX_ERROR Error during reception of the data of the ID tag.
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Page 31: Maintenance, Repair And Disposal
11 Maintenance, repair and disposal The unit is maintenance-free. u Contact ifm in case of malfunction. u Do not open the housing as the unit does not contain any components which can be maintained by the user. The unit must only be repaired by the manufacturer. -
Page 32: Approvals/Standards
DTI420 DTI421 12 Approvals/standards For approvals and standards, the following information is available: • Test standards and regulations: documentation.ifm.com • EU declaration of conformity and approvals: documentation.ifm.com • Notes relevant for approval: Package insert of the device and documentation.ifm.com... -
Page 33: Glossary
DTI420 DTI421 Glossary ID tag An ID tag is used to identify objects. A read/ write device is used to read the ID tag via a high-frequency radio signal. An ID tag consists of an antenna, an analogue circuit for receiving and transmitting (transceiver), a digital circuit and a non-volatile memory.
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