Star Micronics IFBD-HE07X - Page 22

IFBD-HE0708 BE07 User’s Manual
3-13
3.1.5.3. TCP#9100 Forced Release
ReleaseaspeciedhostportnumbersessionfromamongconnectingTCP#9100sessions.
[Execution procedures]
As outlined in the following procedure, send a command from a PC to receive a response from the printer.
(1) Sending from PC to printer
Format <FS> ‘3’ [Host Port Number] <NUL>
Hexadecimal 1C 33 [Host Port Number] 00
Parameter Host Port Number:Thereleasedhostportnumber(2bytedataisspeciedinorderoflow-
order byte to high-order byte.)
Command example:
Host Port Number = 256 (0100 hex): 1C 33H 00H 01H 00H
Host Port Number = 12300 (300C hex): 1C 33H 0CH 30H 00H
Host Port Number = 65530 (FFFA hex): 1C 33H FAH FFH 00H
(2) Response from printer to PC
• If there was no response when the session was connecting: The printer disconnects after responding 00H
(*2)(*3).
• When releasing the session: The printer disconnects after responding 01H (*3).
(*2) It is mandatory to send this command from the same host device where the session was released that is
connecting to TCP#9100. For a different device, the printer responds 00H and a forced release will not be
executed.
(*3) ThiscommanddoesnotconrmthePC'sconnectionresponse.
The following shows an example communication chart.
Note: In the drawing, some portions such as the <ACK> packet have been omitted.
Print Data
SYN
SYN ACK
PC(同一端末)
#22222
ACK
<FS>’3’[ Host Port Number ] NUL
SYN
SYN ACK
FIN
FIN ACK
ACK
ACK
Print Data
FIN (Lost)
Printer
#9100
Host Port Number
01H
PC