Appendix B. Communications Protocol Details; Bht-Protocol; 1 ] Transmission Control Sequences; B.1 Bht-Protocol - Denso BHT-100B User Manual

Appendix B.
Communications Protocol Details
B.1

BHT-protocol

[ 1 ] Transmission Control Sequences

Shown below is a typical message transmission sequence supported by the BHT-
protocol. This sequence example does not include transmission errors or negative
responses.
Establishment of
Data Link
(Phase 1)
Data Transmission
(Phase 2)
Release of Data
Link
(Phase 3)
Sending
Station
ENQ
S
O
Heading text
H
S
T
Serial number
X
S
T
Serial number
X
S
T
Serial number
X
EOT
163
E B
T C
X C
E
T
Data text 1
X
E
T
Data text n-1
X
E
T
Data text n
X
Appendices
Receiving
Station
ACK
ACK
B
C
C
ACK
B
C
C
ACK
B
C
C
ACK
ACK