6100 MPS-B Programming Manual

6100 MPS-B LINK MANAGEMENT
DISCONNECT State
• The application makes its first request to read or write from
the line, without first making a CONTROL request. 6100 MPS-B
first makes the connection, as though a CONTROL request had
been issued. It then performs the requested function, which
may cause another transition. For example, a READ request can
connect the line, poll a station, and read the response; in
this case, the state goes from DISCONNECT to CONTROL to POLL
to READ.
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| |
| Original State: DISCONNECT |
| |
| Request Status Code Description New State |
| |
| WRITE 0 Normal completion SELECT-TEXT |
| 162 Timeout Unknown; use |
| Send EOT |
| 163 EOT reply CONTROL |
| 173 NAK reply Unknown; use |
| Send EOT |
| 177 Reply too long SELECT-TEXT |
| other DISCONNECT |
| |
| READ 0 Normal completion READ |
| 162 Timeout Unknown; use |
| Send EOT |
| 163 EOT received CONTROL |
| 172 Format error in CONTROL |
| received data |
| 173 Bad BCC or other Unknown; use |
| data error Send EOT |
| 177 Received text CONTROL |
| too large |
| other DISCONNECT |
| |
| WRITEREAD 0 Normal completion: SELECT-TEXT |
| ACK or text if ACK; |
| READ if text |
| 162 Timeout Unknown; use |
| Send EOT |
| 163 EOT reply CONTROL |
| |
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Figure 2-2. Completion Status to Leave DISCONNECT State
(Page 1 of 2)
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