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AI4100 Portable AEI Reader
67
March 2, 2015
Track tags are standard AT5110 or AT5118 tags that are programmed in ASCII. The
following table is the format of the Track tag:
Field
Starting
Position
Field Size Data
Tag Type Identifier
1
3
TRK
Track Orientation
4
1
N = North to South
S = South to North
W = West to East
E = East to West
Sequence Number
5
2
Two-digits
Track Name
7
10
Up to 10
alpha/numeric
characters
Track has Spot
Location
17
1
Y = Has spot
locations
N = Does not have
spot locations
Track Spot Orientation
18
1
N = North to South
S = South to North
W = West to East
E = East to West
Examples:
TRKW99201 YW
TRKW01101 NW
8. SPOT TAGS
Spot tags are AEI tags that are programmed with track spot location information. Their
purpose is to eliminate the need to manually enter information when taking track inventory.
Before reading Spot tags, the operator would read the Track tag at his starting end of the
track.
Prior to reading the tag on the rail vehicle the Spot tag for the vehicle's location should be
read. When the rail vehicle's tag is read, the vehicle's location will be determined by the
information in the last Spot tag read.
Spot tags contain the track name associated with the spot location and the spot name.