Omron V680-CA5D01-V2 User Manual page 192

Response
Command
Controller No.
code
× ×
X W
@
3 2
End code
Dividing Frames
If the command length is longer than 271 characters, divide the command into separate frames before
sending the command
When the ID Controller receives any frame except for the last frame, it will return a delimiter (CR) to the
host device, indicating that the ID Controller is ready to accept the next command frame.
Method for Dividing Frames
1. Divide the command into frames with 271 or fewer characters each.
2. Attach the terminator (* CR) to the last frame (frame n) only. Attach the delimiter (CR) to the end of
all other frames.
3. Be sure to include the command code, data designation, antenna designation, and start address in
the first frame (frame 1). If any of these parameters is omitted, a command input error will occur.
Write data does not have to be included in the first frame
4. Make sure that data is divided correctly without any single frames containing only AA*CR or XZ*CR
(i.e., "@Controller No., AA, FCS,*CR" or "@Controller No., XZ, FCS,*CR").
5. Be sure to include the Controller number and FCS in all frames.
Frame 1
@Controller No. XW
Frame 2 @Controller No.
:
Frame
@Controller No.
(n-1)
Frame n @Controller No.
End code
FCS Terminator
× ×
*
0 0 CR
2 2 2
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
Host device
271 characters max. per frame
Start address
A/H 1/2
Write data 2
:
Write data (n-1)
Write data n
Write data 1 FCS
CR
FCS CR
FCS
CR
FCS
CR
*
SECTION 5
Communications
ID Controller
@Controller No. FCS CR
@Controller No. FCS CR
:
@Controller No. FCS CR
@Controller No. FCS CR
@ x W 0 0 * CR
Controller No. FCS
RFID System
User's Manual
189