6100 BSC Programming Manual

6100 BSC Link and Station Management
REQUESTS AND FUNCTIONS APPLICABLE TO CONTROL STATE. The
following requests are permitted in CONTROL state. Some requests
have different functions when the line is in other states. For
complete descriptions of the requests, see Section 3.
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| |
| FETCH CONFIGURATION, to retrieve line parameters. You can |
| find out the values of line parameters, but you aren't |
| allowed to change them in this state. This request does |
| not cause a change of state. |
| |
| |
| FETCH STATISTICS, to retrieve line quality and usage data. |
| This request does not cause a change of state. |
| |
| |
| WRITE DATA, to make a line bid and send the first message. |
| The line state when this request completes successfully is |
| WRITE. |
| |
| |
| READ DATA, to accept a line bid and read the first message. |
| The line state when this request completes successfully is |
| READ. |
| |
| |
| WRITEREAD DATA, to make a line bid, send the first message, |
| and accept a conversational reply. The line state when |
| this request completes with text is READ; the line state |
| when this request completes with an acknowledgement is |
| WRITE. |
| |
| |
| CONTROL, to disrupt a line bid in progress and change the |
| state to DISCONNECTED, or to refuse a bid for the line by |
| sending an EOT sequence. If you use this request to send |
| an EOT, the line state does not change. |
| |
| |
| SETMODE, to change the retry count or the block length for |
| transparent text. This request does not cause a change of |
| state. |
| |
| |
| ABORT, to stop a request in progress, for example, a CONTROL |
| or WRITEREAD request. The line remains in the state in |
| which the work was interrupted. |
| |
| HALT READ, to stop an initial READ request before the other |
| station bids for the line. If the HALT READ succeeds in |
| |
| ---> |
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