Commands Types And Responses; Read - Omron V700 series Operation Manual

4.3 Commands Types and Responses

(1) Read

Read command is used when data is to be read from the Tag. Data for any
specified page may be read. The maximum number of pages that may be
read at one time is 16.
n Command
The pages to be read as parameters will be transmitted. Page specifications shall
be made by specifying the bit indicating the page as "1" and the other bytes as "0".
This binary is converted to a hexadecimal and transmitted as a command. Pages
can be specified at random.
Command Communication
Option
"0" "1"
Bit 7 6 5
Page 30 29 28 ~
Value "00" ~ "FF"
*0,1 bits should be specified as "0". When "1" is specified, it will be regarded as
an error (error code 14).
n Response
The completion code ("00" when normal) and read data will be transmitted. The
read data will be transmitted continuously according to the order of page
specification. When an error occurs, the error code is transmitted as a completion
code for the reply.
Completion code
"0" "0"
(Data 1)
*Data number n = specified page x 8 (2 characters each in HEX specifications,
one character each in ASCII codes.)
<Command Example>
When reading all 6 pages from pages 1, 3, 5 ~ 8 using the single trigger mode
with HEX specification:
0100000003D4 [CR]
Page specification (8 characters)
1 0 7 6 1
24 23 22 21 ~ 16 15 14 13
"00" ~ "FF"
Read data*
⋅ ⋅ ⋅
(Data n)
(00000000000000000000001111010100b)
0 7 6 1 0
~ 8 7
"00" ~ "FF"
Terminator
CR
(16/30)
Terminator
CR
7 6 2 1 0
6 5 ~ 1 * *
"00" ~ "FC"