User's Manual

Teklogix 9150 Wireless Gateway User Manual 157
Chapter 6: Mini-Controller Configuration
3274/Telnet
When the information arrives at the terminal screen, the appropriate AIAG field for
the scanned information is located using the “AIAG Identifier”. Because Mode 0
was set at the host, the “AIAG Prefix” – I – is displayed on the terminal screen, and
when this screen is completed, the prefix will be sent back to the host.
Figure 6.5 AIAG Field Sent To The Terminal
Visible Match Character
By inserting a special ASCII character directly before an entry field, the application
program distinguishes a “match field” from an entry field. For example, suppose an
angle bracket “
>
” is defined for visible match fields. Inserting “
>
” immediately
preceding the entry field identifies it as a match field, as illustrated below.
Part #> ___________
The range for this parameter – 0 to 127 – represents the decimal values of
ASCII characters. A value of 0 disables this feature. The ASCII decimal value
entered at the 9150 must coincide with the value set by the application program.
To use the Visible Match feature, the host computer preloads data into a match
entry field; the data is visible on the terminal screen. The preloaded data sent to a
terminal can consist of exact characters, special match characters or a combination
of the two. Refer to Table 6.2 on page 158 for match characters recognized by
Teklogix terminals.
If an entry does not match the preloaded data, the entry is displayed, the terminal
beeps, and the cursor moves to the first position in the match field. The operator can
either make another entry in the match field, or move the cursor to a new field.
Item No.
I
AIAG Information From Host To Terminal Screen
@
AIAG Prefix (data)
AIAG Field Identifier