Phase 2 with a sequence of dle eot and ids – Denso BHT-6000 User Manual

Page 128

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Chapter 3. Communications Operations of BHT-6000

Phase 2 with a sequence of DLE EOT and IDs

If the sending station receives a sequence of DLE EOT and IDs anytime during
phase 2, it shifts to phase 3 to terminate the message transmission abnormally.
Even if the phase 3 terminates normally, the transmission results in an abnormal
end.

Sending
station

Receiving
station

To phase 3.

DLE EOT and IDs

Occurrence of
an error

Phase 2 with iterated transmission of DLE ENQ and IDs due to no

response or invalid response

If the sending station receives no response or any invalid response from the
receiving station in response to a transmission block sent, it iterates sending of a
sequence of DLE ENQ and IDs at 0.5-second intervals up to 59 times.

If the sending station receives a sequence of DLE ACK and IDs before sending the
sequence of DLE ENQ and IDs 59 times, it continues the subsequent message
transmission.

Sending
station

Receiving
station

Data text m

Data text m+1

DLE ENQ and IDs

DLE ACK and IDs

DLE ENQ and IDs

0.5 second

0.5 second

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