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187
Appendices
■ Abnormal termination of phase 1 (Abort of phase 1)
If the sending station receives no sequence of DLE ACK and IDs from the receiving
station after sending a sequence of DLE ENQ and IDm 60 times in succession, it
sends a sequence of DLE EOT and IDm to the receiving station after 0.5 second
from the 60th sequence of DLE ENQ and IDm, then aborts the message transmis-
sion abnormally.
Sending
station
Receiving
station
0.5 second
0.5 second
0.5 second
DLE ENQ and IDm (2)
DLE ENQ and IDm (3)
DLE ENQ and IDm (1)
DLE ENQ and IDm (60)
DLE EOT and IDm
Abnormal
termination
The receiving station's default timeout is 30 seconds. You may modify the
timeout length on the SET PROTOCOL screen in System Mode (pp. 62 and 64)
or by using the XFILE statement (refer to the "BHT-BASIC Programmer's
Manual").