5-4
Section
Write Operation in SYNC Mode
69
Explanation
Normal operation
When errors occur
(1) The trigger input is turned ON with the R/W input ON at
the host device, and the write data output, and the Data
Carrier in the transmission area.
Note Leave the trigger input ON until the HS output turns
ON.
(2) When the trigger input’s ON is confirmed, the input
information is obtained and the HS output is turned ON.
Then the process of writing to the Data Carrier begins. At
this time the data outputs are cleared to “0” and the LED
indicators are turned OFF.
(3) When the trigger input turns OFF, the HS output turns
OFF.
(4) When the write processing is completed, all zeros are
sent to the data outputs and the NORMAL output is turned
ON. The write data is displayed at the data LED indicators.
Note If the trigger input is still ON when the writing to the
Data Carrier is completed, the data will not be output
until the trigger input turns OFF.
(5) The data output is obtained at the host device with the
NORMAL output as the trigger.
(6) After the time set for the output mode elapses, the data
outputs and the NORMAL output turn OFF.
Normally, an error occurs in SYNC mode if the trigger input
signal is turned ON when no Data Carrier is in the
transmission area, or if the Data Carrier moves out of the
transmission area when the Sensor is still accessing the
Data Carrier.
(1) If the trigger input is turned ON when no Data Carrier is
in the transmission area, this situation is treated as an “No
Data Carrier” error.
(2) When an error occurs, the error classification is output
to the data output lines and the ERROR output signal
turns ON. The error classification is also shown by the
data LED indicators flashing red.
(3) After the time set for the output mode elapses, the data
outputs and the ERROR output turn OFF.