6100 MPS-B Programming Manual

6100 MPS-B LINK MANAGEMENT
READ State
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| |
| Request Status Code Description New State |
| |
| CONTROL 0 Normal Completion DISCONNECT |
| (DISCONNECT) 140 Modem error DISCONNECT |
| 161 6100 error DISCONNECT |
| 162 Timeout DISCONNECT |
| 190 6100 error DISCONNECT |
| |
| CONTROL 0 Normal Completion CONTROL |
| (Send EOT) 140 Modem error DISCONNECT |
| 161 6100 error DISCONNECT |
| 190 6100 error DISCONNECT |
| |
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Figure 2-5. Completion Codes to Leave READ State
(Page 2 of 2)
Requests and Functions Applicable to READ State
The following requests are permitted in READ state. Some
requests have different functions when the line is in other
states. For complete descriptions of the requests, see
Section 3.
• 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.
• READ data, to acknowledge the last message and read the next
one. The line state when this request completes successfully
is READ.
• WRITEREAD data, to make a conversational reply, and accept an
acknowledgement or conversational reply. The line state when
this request completes with text is READ; the line state when
this request completes with an acknowledgement is SELECT-TEXT.
• CONTROL, to disrupt the read in progress and change the state
to DISCONNECT, or to Send EOT and change the line state to
CONTROL.
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