Omron V680-CA5D01-V2 User Manual page 196

Responses Longer Than 250 Characters
If the response containing the read data is longer than 250 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
@Controller No. ER A/H 1/2 Start address No. of read bytes
End code
Read data
FCS *CR
@Controller No.
@Controller No.
@Controller No.
@Controller No.
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.
Communications
ID Controller
250 characters max. per frame
240 characters
Read data 1
ER 00
240 characters
Read data 2
Read data (n-1)
240 characters
Read data n
SECTION 5
FCS CR
Frame 1
20 ms
FCS CR
Frame 2
:
Frame
FCS
CR
(n-1)
FCS Frame n
*CR
RFID System
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User's Manual