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Chapter 23: Mini-Controller Configuration
3274 Emulation
the host, the "AIAG Prefix" – I – is displayed on the mobile computer screen, and when this
screen is completed, the prefix will be sent back to the host.
Figure 23.4 AIAG Field Sent To The Mobile Computer
AIAG Information From Host To Mobile Computer Screen
AIAG Field Identifier
Item No.
@
I
AIAG Prefix (data)
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 illus-
>
trated below.
Part #> ___________
The range for this parameter – 0 to 255 – represents the decimal values of ASCII characters.
A value of 0 disables this feature. The ASCII decimal value entered at the 9160 G2 must co-
incide 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 mobile computer screen. The preloaded data sent to a mobile com-
puter can consist of exact characters, special match characters or a combination of the two.
Refer to Table 23.2 for match characters recognized by Psion Teklogix mobile computers.
If an entry does not match the preloaded data, the entry is displayed, the mobile computer
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. When an entry
(even one that doesn't match the preloaded data) is made in a match field, the entry is sent to
the host as part of the mobile computer's modified data during the next transmission.
Psion Teklogix 9160 G2 Wireless Gateway User Manual
265
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