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| » 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 | |
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