5 Host Control Function of DX1005.1 File Data Transmission Function5-3157449-1CDRE-CKI-A456Data TransmissionFunction5.1.1.2 SaveThe transmission from the DX100 to a host computer proceeds as follows.DX100 → Host computer1. 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 thehost computer.3. The request to send consists of a header number and a subcodenumber. Refer to the header number list.4. After the request to send is accepted, the host computer should getready to receive data.The DX100 sends the ENQ code to establish a data link.5. After the data link is established, receive the data sent from theDX100. The transmission terminates at completion of reception.If the data requested to send are not found, or the header of therequest to send has an error, the DX100 sends the following responsemessage instead of data.Check the header and take an appropriate action.Fig. 5-2: Saving File Data (Host Control Function)*1 ACK0 or ACK1*2 File name : CR (File name does notinclude extension)SOH 90,000 STX DATA CR ETX BCCDX100Host computerACK002, 051SOH STX ETX BCCACK1STX ETB BCCDataENQACK0ACKEOT02, 001SOH STX ETB BCCEOTENQSTX ETX BCCDataACK1File nameFile name*2*164 of 125
