Envoy Application Programming Manual
Table Of Contents
- What’s New in This Manual
- About This Manual
- 1 Application Programming With Envoy
- 7 ADM-2 Multipoint Supervisor Protocol
- 8 TINET Multipoint Supervisor Protocol
- 9 Burroughs Point-To-Point Protocol
- 10 Asynchronous Line Supervisor Protocol
- A ASCII Character Set
- B ASCII to EBCDIC Code Conversion
- C File-System Procedures
- D Statistics Messages
- E S-Series Changes to Envoy
- NonStop™ Himalaya S-Series Server Architecture
- G-Series Migration Considerations
- CBSENSEON and CFSENSEON Modifiers
- LEOTRESYN and NOLEOTRESYN Modifiers
- Treatment of Characters After the Termination Character
- Number of SYN Characters
- DTR Drop
- Reporting of Parity Error
- Half-Duplex Support for Asynchronous Lines
- Controller Replacement
- SYSGEN and COUP
- Unit Numbers
- FDX Line Changes
- No Support for Auto-Call Unit
- Glossary
- Index
BISYNC Point-To-Point Protocol
Envoy Application Programming Manual—427159-001
3-43
Line Bid
The conversational exchange shown in Example 3-17 shows the control sequences
associated with sending messages from the local station to the remote station using the
flow diagram in Figure 3-10.
Figure 3-10. BISYNC Point-to-Point Line Bid
022CDT .CDD
Local Remote
Start Start
OPEN the Line OPEN the Line
Monitor the
Line (READ)
Line Times Out Time Out?
Anything
to Send?
EOT?
Format the
Message
Something
Read
Send the
Message
(WRITE)
Monitor the
Line (READ)
Process
Message
No
No
No
Yes
Yes
Yes