6100 MPS-B Programming Manual

INTRODUCTION TO 6100 MPS-B
Message Formats
ENVOY FORMAT FAST SELECT REQUEST (Burroughs protocol):
Text Out field = 6 + message length in bytes
Text field =
|<---- MCW ---->|<------ sequence-header ------>|
_________________________________________________
| | | | | | |
| 0 | 0 | [EOT] | s | si | 0 | ...
| | | | | | |_
|<---------------------- message ---------------------->|
_________________________________________/ /_____________
| | | | | / / | |
... | [SOH] | an | an | [STX] |<---- text --->| [ENQ] |
| | | | | / / | |
/ /
s = Fast select function code
si = Station index from Poll/Select List
0 = placeholder (in sequence-header)
an = Station character address
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