Extended CommandsChapter —7
310 TE 2000
5250 Terminal Emulation Programmer’s Guide
Receive Only On RS-232 Port (#G)
Note: There are no flow control settings for extended command #G.
The Receive Only On RS-232 Port extended command provides a way to
usetheRS-232portontheterminaltocollectdata.Ascaleisoneexample
of a use for this command. The host computer sends “#G” characters to
alert the terminal f or activity on the port.
Line 2, Column 1, is the start of the area on the screen where an input
field may be placed for receive data. The host application must supply the
input field for the data receiv ed on the RS-232 port. The host can place
the input field anywhere on the screen except the position f or the return
status field.
Thefollowingtabledescribesthelineandcolumnswherecharactersmust
appear, and their meanings. Note that “b”indicatesa1-bytespace.
Receive Only Characters — Line 1, Columns 2–24
Column Description Character
2 Extended command #
3 Receive Only On RS-232 Port command G
4 S peed (bits per se cond) 1=1200; 2=2400; 3=4800; 4=9600; 5=19200; 6=38400
5 Data parity N=None; 0 (zero)=None; b=None; E=Even; O=Odd
6 Data bits 7=Seven; 8=Eight
7 Stop bits 1=One; 2=Two
8–12 Reserved bbbbb
13 Retu rn AID key b=AID key is E nter (default). X=AID key character. See the
“Return AID Keys” table on page 303 for characters.
14–15 Maximum characters to receive bb=Default
dd or XddX, where: dd=00-99. Default: 99.
dd=Any nu mber of decimal digits from 0–2000, inclusive.
Default: 99.
16–17 Delimiter character AA=Hexadecimal ASCII code that marks the end of data to
be received. Range: 00–7E. Default of 00 or bb
implies no start
character.
18–19 Number of delimiter characters XX=Number of characters accepted before sending return
code to host. Range: 00–99. Default of 00 or bb
implies no
start character.
20–21 Start character AA=Hexadecimal ASCII code. Range: 00–99. Default of 00
or bb
implies no start character.
22 Return start character to host F=Return character; b=D o not return character
23 Flag parity errors P=Flag; b=Do not flag
24–25 Receive timeout length XX=Number of s e conds the terminal waits for input from the
RS-232 port before it sends a timeout error. Uses the 5-sec-
ond default when field contains spaces.
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