Casio PX-5S - Page 45

Note: Number of retries that exceeds the retries stipulated by Handshake Max Retry explained under “21.3 Data Management
Parameter”.
19.3.12 Example: Session Termination by Error Generation
Data Receiver Data Sender Operation
SBS(HBR) -----> Session Start Request
<----- ACK Acknowledge
HBR -----> Send Request
(Optional)
<----- HBS Send Packet
ACK -----> Acknowledge
<-???- HBS Send Packet
<-???- HBS Send Packet
ERR(CRC Error) -----> Error
<-???- HBS Resend Packet
ERR(Format Error) -----> 2 consecutive errors
<-???- HBS Resend Packet
ERR(Time Out Error) -----> 3 consecutive errors
:
<-???- HBS Resend Packet
ERR(CRC Error) -----> N consecutive
errors(*Note)
<-???- HBS Resend Packet
RJC -----> Abandon Session
Note: Number of retries that exceeds the retries stipulated by Handshake Max Retry explained under “21.3 Data Management
Parameter”. Also, the maximum number of retries is the same, even if multiple instances of the same error are generated or if
multiple different errors are generated.
19.3.13 Example: Intentional Session Termination by an External Device
Data Receiver Data Sender Operation
(External Device) (This Instrument)
SBS(HBR) -----> Session Start Request
<----- ACK Acknowledge
HBR -----> Send Request
<----- HBS Send Packet
ACK -----> Acknowledge
<----- HBS Send Packet
ACK -----> Acknowledge
<----- HBS Send Packet
RJC -----> Terminate Session
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