Envoy Application Programming Manual

BISYNC Point-To-Point Protocol
Envoy Application Programming Manual—427159-001
3-30
WRITEREAD Procedure (Limited Conversational
Exchange)
Table 3-14. Errors on Multileaving Conversational WRITEREAD
Error
Number Description Resultant Line State
0 No error. Message is returned to buffer of the
application process.
CONVERSATIONAL
160 Request is invalid for device state; protocol error. unknown
161 Impossible event occurred for line state. unknown
162 Operation timed out. The acknowledgment or text was
sent but no message was received within the timeout
and retry limits.
CONTROL
163 EOT received. CONVERSATIONAL
164 For switched lines, the disconnect sequence (DLE EOT)
was received. Data terminal ready is cleared.
DISCONNECT
For nonswitched lines, the disconnect sequence (DLE
EOT) was received.
CONTROL
166 SOH ENQ received. CONVERSATIONAL
168 NAK received on line bid. CONVERSATIONAL
170 No ID sequence received during circuit assurance
mode.
DISCONNECT
172 Reply not proper for protocol. The data received while
waiting for a line bid or for text was not proper for the
BISYNC protocol.
CONVERSATIONAL
173 Transmission error. The message received or sent was
in error and a NAK sequence was sent the number of
times specified by the retry value.
CONVERSATIONAL
175 Incorrect ACK received. Envoy requested a response
from the remote the number of times specified by the
retry value.
CONVERSATIONAL
177 Text overrun. The length of the message received
exceeds the length specified in the read count
parameter. The READ was attempted the number of
times specified by the retry value.
CONVERSATIONAL