Omron V680-CA1D User Manual page 45

Communications Test with Host Device
Test commands are used to perform a communications test of the communications between the Con-
troller and host device. This test enables the cable connections and processing operation of communi-
cations to be checked before the trial operation of the whole system.
1.
Create a simple communications program on the host device and send the test commands.
If the communications line is normal, the Controller returns the data received.
• Example
Sending the message data "OMRON" from Controller No. 2.
Command
Controller No. Command code
@ 0 2 T
3
Response
Controller No. Command code
0 2
@ T
3
Communication Test between the Tag and Read/Write Antenna
Actual commands are sent from the host device to test whether communication between the Tag and
Read/Write Antenna is normal.
1.
Connect the host device and Controller, and then turn ON the power to the Controller.
2.
Send the AUTOWRITE command from the host device.
3.
If communication with the Tag is normal, a response will be returned to the host device.
• Example
Using the Read/Write Antenna connected to Controller No. 2 to write the 2-byte data "1122" from Tag
address 0010H (hexadecimal code).
Command
Command
Controller No. code
0 2 A
@
2
3
Response
Command code
Controller No.
@ 0 2 A
3
Message data
S O M R
2 5
Message data
O M R
S
2 5
Data Antenna
designation designation
Start address
W H 1 0 0
1 1
End code FCS
0 0 5 4
W
2 2 2
FCS Terminator
*
O N 1 4
2
FCS Terminator
*
O N
1 4
2
Write data
1 0 1 1 2
4 4
Terminator
*
CR
2
Section 3
Before Communications
CR
2
CR
2
FCS
Terminator
*
2 2 C CR
2
2
Heat-resistive RFID System
User's Manual
43