MLB-S-BGS2-BW Terminal User Guide
50
Rev 1.3
The application has to deliver exactly the number of bytes indicated by <cnfWriteLength>. A 0
value means that no data can be written at this time, i.e. it serves as a flow control
mechanism.
In interactive text mode, <cnfWriteLength> indicates the maximum number of bytes it can
process. Characters above the indicated number are ignored.
< unackData >
(num)
Number of data bytes already sent but not yet acknowledged at the TCP layer.
The value is constantly changing until the entire upload job has completed. If the value equals 0 all data sent so
far is acknowledged.
In binary mode, <unackData> includes the <cnfWriteLength> value of the pending write operation. There-fore,
the very first write operation of an upload job returns identical values for <cnfWriteLength> and <unackData>.
This mechanism allows the host application to easily verify whether or not the remote host has successfully
received the data.
Parameter is not applicable to HTTP, POP3, SMTP, Socket with UDP protocol, TCP Socket client with secure
connection (TLS), Transparent TCP client with secure connection (TLS). For these services the counter is
always set to 0.
< urcCauseId >
(num)
1
The service is ready to accept new user data.
2
Data transfer has been finished successfully and Internet service may be closed without loss of
data.
Содержание MLB-S-BGS2-BW
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