» RFID Label Printers
RFID printer series of Valentin The option RFID is only available for SPX and Vario II.
Communication of printer with RFID module is done by printer internal second serial interface. Data that is to program are transferred to RFID module in blocks. Partition of RFID data in blocks is done by the printer. Communication of printer with RFID module is done by printer internal second serial interface. Data that is to program are transferred to RFID module in blocks. Partition of RFID data in blocks is done by the printer. Transmission of data to the RFID module is effected with a baud rate of max. 57600 Baud. After programming a block a 'read after write control' of block is executed. In case an error occurs while programming then the printer reacts corresponding to the selected method of error handling.  

Notion definitions
RFID Radio Frequency Identification
TAG; Smart Label Identification for RFID label (antenna, chip, carrier)
UID Unique Identifier 64 Bit / 8 Byte
EPC Electronic Product Code
Blocks Storage unit of tag 1,2,4,8,.. Byte


RFID Functionality

 RFID Tag   RFID labels contain an antenna and a chip that can be programmed by RFID module during printing procedure. The quantity of data that is to save as well as storage partition depends on the used chip type. Each chip/each label contains an UID (Unique Identifier) which was programmed at production of chip

RFID frequencies
125 khz world-wide the same
range < 0,5 m 
slow data rate
13,56 Mhz world-wide the same
range max. 1 m
medium data speed
UHF 860-950 Mhz no world-wide standard
range up to 5 m
different power
high data speed
Microwave 2,45-5,8 Ghz range max. 2 m
very high data rate

Carl Valentin starts with a 13,56 MHz RFID module. This supports standard labels that are available at the moment.

RFID applications

• Point of sale
• Library systems
• Luggage labels
• Health care / patients identification
• Supply chain management
• Retail sales

RFID advantages compared to bar codes

• On demand, information onto tag can be modified or extended
• High storage capacity available 96 Bit to 8 Kbytes
• Recording data of different articles (anti collision)
• Multiple tags at the same time readable, fast data recording (bulk read)
• Larger reading distances, no intervisibility necessary
• Resistant to scratches
• Higher reading accuracy, lower error rate

Disadvantages compared to bar codes

• High costs
• Problems with liquids
• Problems with metal cases
• Size of tags (UHF)
• Readability of tags onto products (bottles/labels over angle)
• EMI (electro magnetically interferences) -> No UHF application in medical environment

 

Carl Valentin GmbH | Neckarstraße 78-82+94 | 78056 Villingen-Schwenningen
Phone +49 7720 9712-0 | Fax +49 7720 9712-9901 
E-Mail: info@valentin-carl.de  |  Internet: www.valentin-carl.de