11
(6
)
Transmission frame error (Master receive)
①
Session starts when ENQ is sent from master to slave.
②
Slave acknowledges by returning ACK to master.
③
Master sends read command.
④
Slave returns ACK code to acknowledge read command.
⑤
Slave sends read data to master.
⑥
For some reason, master fails to receive read data.
⑦
Slave fails to receive acknowledgment of read data and attempts to resend every 3 seconds for 3
times.
⑧
After the third failure, slave aborts the sequence and ends communication.
Master (Machine)
1
2
6
ENQ code (05H)
ACK code (06H)
Read data (ASCII code)
Read data (ASCII code)
Read data (ASCII code)
7
Read data (ASCII code)
8
3
4
Read command (ASCII code)
ACK code (06H)
5
3 second
elapse
3 second
elapse
3 second
elapse
Slave
(KP-FM200WCL
KP-FMR200WCL)
HITACHI
Summary of Contents for KP-FM200WCL
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