Omron V680-CA5D01-V2 - Page 186

183
RFID System
User’s Manual
SECTION 5
V600 Commands
SECTION 5
Communications
Responses Longer Than 256 Characters
If the response containing the read data is longer than 256 characters, the response is divided into
multiple frames as shown below. Only the final response frame ends in a terminator (*CR). All other
frames end in a delimiter (CR).
When the ID Controller sends any response frame except for the last one, it will wait for the host device
to return a delimiter (CR). When the ID Controller receives the delimiter, it will send the next response
frame.
Frame 1
Frame 2
:
Frame
(n-1)
Frame n
1 frame = 256 characters max. per frame
250 characters
254 characters
254 characters max.
XR
CR
CR
CR
*CR
00
Read data 1
Read data 2
Read data (n-1)
Read data n
CR
*CR
CR
CR
CR
A/H 1/2XR
Start address No. of read bytes
:
Host device
ID Controller