5.1 File Data Transmission Function
5-2
The data type is distinguished by the header number and the subcode number. Refer to the
header number list.
Loading File Data (Host Control Function)
*1 ACK0 or ACK1
*2 Normal completion : 0000CR (ASCII code)
Abnormal completion : “Integer except 0000”CR (ASCII code)
*3 File name : CR (File name does not include extension)
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The transmission from the NX100 to a host computer proceeds as follows.
NX100 → Host computer
1. The ENQ is sent from the host computer to establish a data link.
2. After the data link is established, a request to send is sent from the host computer.
3. The request to send consists of a header number and a subcode number. Refer to the
header number list.
4. After the request to send is accepted, the host computer should get ready to receive
data. The NX100 sends the ENQ code to establish a data link
5. After the data link is established, receive the data sent from the NX100. The transmis-
sion terminates at completion of reception. If the data requested to send are not found,
or the header of the request to send has an error, the NX100 sends the following
response message instead of data. Check the header and take an appropriate action.
NX100
Host computer
ENQ
ACK0
SOH 02, 001 STX File name
ETB BCC
ACK1
STX
ETB BCCData
ACK0
STX ETX BCCData
ACK
EOT
ENQ
ACK0
ACK1
EOT
SOH 90, 000 STX Data ETX BCC
*3
*1
*2
SOH 90,000 STX DATA CR ETX BCC