LS Industrial Systems LGRF-H, Руководство пользователя

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“LS Ubiquitous RF-ID System”
[Table 4.2.1.4] Receiving Frame Structure: normal operation
No. 1 2 3 4 5 6(LSB) 7
Des-
cription
Start
Byte
(F0)
Station ID
(SID)
Length
(DL)
Control
Mode
Error
Code
0x00
Determined by
Command 1,2
Check Sum
(CS)
[Table 4.2.1.5] Description of each item of Normal Receiving Frame
No. Items Description
1 Start Byte Byte indicating the start of Receiving Frame (displayed as F0)
2 Station ID Station no. given to Reader (which adjusts the value of Rotary
switch next to Reader.)
3 Data Length Total length of Frame (from Start Byte to Check Sum)
4 Control Mode Mode to select the control environment of Reader
5 Error Code At normal receiving frame, ‘00’
6 LSB Determined by Command and Control value
7 Check Sum Check Sum value
[Table 4.2.1.6] below shows the Receiving Frame Structure when error occurred if Reader
performed abnormal communication operation. And [Table 4.2.1.7] shows the description of
each item of Frame Structure where error occurred by abnormal receiving.
[Table 4.2.1.8] shows Error Code indicated in Receiving Frame when error occurs.
[Table 4.2.1.6] Receiving Frame Structure: when Error occurs
No. 1 2 3 4 5 6 7
Des-
cription
Start Byte
(F0)
Station ID
(SID)
Length
(DL)
Control
Mode
Error
Code 1
Error
Code2
Check Sum
(CS)