AI4100 Portable AEI Reader
38
March 2, 2015
is displayed (see Figure 8) and then selecting the Send Tag via Bluetooth or Send Tag via
Network menu item.
With each AEI tag read the portable reader will send a single record ending with a carriage
return (hex 0D). This record will only be sent if there is a connection (Bluetooth or Network)
to your device. If there is no connection, the portable reader will store this message until a
connection is made and it can be sent.
The following table is the layout of the record for the rail vehicle tag:
Field Description
Values
1
Date and time when the tag was
read
The field is in the following format
MM/DD/YYYY(space)HH:MM
MM = month of year
DD = day of month
YYYY = year
HH = hour
MM = minute
2
Sequence Number
Numeric 4 digits
The sequence number of the file from 0
to 9999. This sequence number is
incremented each time a new file is
created. When it reached 10,000, it is
reset to 0
3
Data format code
Two digits
51 = standard rail vehicle identification
format
(see AAR Specification S-918 for all
codes)
4
Frame Marker
One digit
The number of the frame that was read.
Dynamic tags can send multiple frames
of data. Each frame is considered a
separate tag read. Passive tags can
only send one frame.
5
Equipment group code
One to two digits
5 = locomotive
19 = railcar
(see AAR Specification S-918 for all
codes)