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
ADM-2 Multipoint Supervisor Protocol
Envoy Application Programming Manual—427159-001
7-37
WRITE Operation
Figure 7-8. ADM-2 Multipoint Supervisor WRITE
Unacknowledged
Message in
Network?
049CDT .CDD
Send Selection Sequence
CALL WRITE...
No
Wait for Response
ACK Recd?
No
No
Send ACK
No
No
No
Yes
Yes
No
No
Error = 162Timeout?
Text Overrun?
EOT Recd?
WACK Recd?
Protocol
Error?
Send Message
Wait for Response
Text with Error ?
Timeout?
EOT Recd?
ACK Recd?
Wait for EOT
Retry
Count = 0?
Error = 177
Error = 167
Error = 166
Error = 172
Error = 172
Error = 162
Error = 163
Error = 0
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes