Rockwell Automation 2755 AtomScan Bar Code Reader - Manual (Page 59)

5–14 Configuring Your Reader
Publication 2755-6.9
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Match Code Master. Allows you to edit an existing master or
type in a new master label from your keyboard. You can display
current master and accept entry up to 64 characters.
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Sequential Matching. Defines the order (ascending or
descending) in which labels will be compared when Match Code
Type is set to Sequential.
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Match Start Position. Defines the first character in the label
(from left to right) that will be compared with those of the master
label when Match Code Type is set to Enabled or Sequential. For
example, if you set Match Start Position to 3, the first 2
characters read in the label will be ignored and only the 3rd and
subsequent characters to the right will be compared, up to the
number of characters specified by Match Length. Match Start
Position must be set to one or greater to enable this feature.
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Match Length. Defines the length of the character string that will
be compared with that of the master label when Match Code Type
is set to Enabled or Sequential and Match Start position is set to 1
or greater. For example, If Match Length is set to 6 in a 10
character label, and Match Start Position is set for 2, only the 2nd
through 7th characters (from left to right) will be compared.
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Wild Card Character. Allows you to define the Wild Card
Character that can be used when defining a Master Label. A
Master label can be entered 4 different ways.
– By typing in from the keyboard at the command line of the
Operations menu under Match Code Master.
– With New Master Pin enabled, toggling reader pin 12 to
ground (or by momentarily pressing the New Master
button on the interface box) will save the next label read as
the master label.
– Pressing [<G>] allows the next label read to be the master
label.
– Sending a serial command in the format <)XXXX)>
downloads data as the master label.