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106
Sec
tion
5
How to Use Command
L
in
k
Un
it
V7
00-
L1
2
V500-R521B2/C2
User’s Manual
Section 5
Example of System Configuration
Polling (P)
When the transmission procedure is "Normal procedure (polling procedure)", transmit
the oldest data in the buffer as a response.
Input command
Response
When there is data in buffer
When there is no data in buffer
In case of "Through procedure (normal output procedure)", no response is output even
if command is input.
Resend request (R)
The response sent before is transmitted again.
Input command
Response
$01
$10
P
$0D
(Check code)
(Machine No.)
$0D
(Check code)
(Machine No.)
Communication data with the bar code reader
$01
$01
7
4
$0D
(Check code)
(Machine No.)
Code indicating that there is no data
$01
$10
R
$0D
(Check code)
(Machine No.)
$01
$0D
(Check code)
(Machine No.)
Communication data with the bar code (same as immediately before)
V500-R521.book 106 ページ 2008年7月18日 金曜日 午後1時1分