LS Industrial Systems LGRF-H, Руководство пользователя

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“LS Ubiquitous RF-ID System”
4.2.2 Main Protocol Terminology
Here describes the terminology and abbreviated terms used for Sending/Receiving protocol,
the calculation of Check Sum and the numeric marking.
Definition of terminology and the abbreviated terms
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SID : Station ID given to Reader (the value of rotary switch next to Reader)
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DL : Total length of Frame (from Start Byte to CS)
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CMD : Command by each Control Mode
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UID : Original Tag ID (Unified identifier : 8 byte )
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AFI : Original ID of Tag reading by user (Application Field Identifier)
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DSFID (DS) : Tag Data Storage Format (Data storage format identifier )
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Baddr (BA) : Block data address
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Bnum (BN) : Block Data number
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Bdata (BD) : Block data
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Control Mode : Communication mode classification
Check Sum Calculation
Check Sum value is defined as the value taking the low 8 bit from the addition result after
adding the rest except CS bit.
(Reference: Data error confirmation between Tag and Reader can be done by CRC16 calculation.)
Ex) F0 00 08 03 27 01 00 23 (Inventory command)
F0+ 00+08+03+27+01+00 =23 (HEX) [Low 8bit is taken only as Check Sum value.]
Numeric marking
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HEX value marking : 0x01 or 01, 02 , 0A
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DEC value marking : (1), (2), (10), (255) : marked by adding ( )
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BIN value marking : b1, b101110 : marked by adding b in front of .