Omron V680-CA5D01-V2 User Manual page 194

Responses Longer Than 245 Characters
If the response containing the read data is longer than 245 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).
By default, each response frame is separated by 20 ms. The interval between frames can be changed
using the PARAMETER SET (SP) command.
p. 230
Host device
Start address
ER A/H 1/2
End code
Read data
No. of read bytes
*CR
ER
Indicates the execution result for the command.
"00" indicates a normal end.
Refer to List of End Codes for information on other end codes.
p. 235
The data read from the Tag.
The number of characters will be the same as the specified number of bytes to read for ASCII
data and twice that number for hexadecimal data.
ID Controller
245 characters max. per frame
240 characters
Read data 1
00
240 characters
Read data 2
Read data (n-1)
240 characters or less
Read data n
SECTION 5
Communications
CR
Frame 1
20 ms
CR
Frame 2
:
Frame
CR
(n-1)
CR
* Frame n
RFID System
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User's Manual