Appendix B - Host Reporting Formats

APU-102 Manual
Obsolete reports may not be supported in version 5.0 +

Overview

The List Clean Consist (L) command on the System Menu lists train information in a generic format. You may also choose from the following four alternative formats for displaying header and tag information:

• S-918A Format (formerly known as T94)
• Full Consist Format
• Compass Format
• TCS Format

The following tables explain the screen data that displays with each format. The format options are listed below with their appropriate commands in parentheses, followed by header and tag segment definitions. For instructions on using the commands, refer to APU-102 User Interface.

B.2  S-918A Record Format (LT94)

For detailed, up to date information on the S-918A specifications refer to the AAR’s Manual of Standards and Recommended Practices, Railway Electronics, Section K.

B.2.1  S-918A Consist (AEM) Header Format Field Descriptions

Field Name	Description of Data
Segment ID	“AEM” indicates what follows is a consist report.
AAR Billing Code	Universal site identification code unique for each APU. Format Zero (0) = railroads, non-zero = non-railroads (#) Standard AAR billing codes (railroads), unique substitutes for non-railroads (#####)
Site ID	Station numbers or unique owner ID (########)
Event Start Date	Format (in local time) Event start date (YYMMDD)
Event Start Time	Format (in local time) Event start time (HHMM)
Event End Time	Format (in local time) Event stop time (HHMM)
Time Zone	Time zone (3 numeric) GMT plus ##.# (decimal assumed) 050 = Eastern 060 = Central 070 = Mountain 080 = Pacific
Daylight Savings Time Indicator	Daylight savings indicator (Y = Yes, N = No)
Data Format Version	Data Format Version Number (#.## with . assumed) First digit = Major change (May not be backwards compatible) Second digit = Major enhancement (Is backwards compatible) Third digit = Processing upgrade
Train Sequence Number	Site message sequencing number. A sequential number assigned to each train by the APU-102.
Conversion Status (Locomotives)	Conversion status, consist confidence level for locomotives. Values: G = Good A = Axle patterns are questionable D = Excessive disqualifiers (Problems with both axle patterns and disqualifiers) M = Multiple inconsistencies (Problems with both axle patterns and disqualifiers) ? =Other
Conversion Status (Cars)	Conversion status, consist confidence level for railcars. Values: G = Good A = Axle patterns are questionable D = Excessive disqualifiers (Problems with both axle patterns and disqualifiers) M = Multiple inconsistencies (Problems with both axle patterns and disqualifiers) ? =Other
Direction of Travel	Direction the train is traveling. Values: N = North S = South E = East W = West
Switch/Direction Indicator	Owner-defined switch/direction indicator. Reflects the status of external Switch Point Controllers or similar devices that are tied into the APU to assist with additional data on the consist movement within a facility where multiple directions are possible. Values: 0-9 Default: 0
Units of Measure	Indicates English or Metric unit of measure for the entire report. Values: E = English M = Metric
Train Speed (Max)	Maximum speed of the train. In MPH or KPH.
Train Speed (Min)	Minimum speed of the train. In MPH or KPH.
Train Speed (Avg)	Average speed of the train. In MPH or KPH.
Train Movement Type	The status/type of the train’s movement. Values: A = Through movement over 5 mph. B = Through movement under 5 mph. C = Through movement stop and go. D = Through movement switching. (Direction changes detected.) E = Simulation. (Not used in 160 transaction set.) F = Reverse exit (pull by) R= Arrival Listing ? = Other
Termination Status	Status of termination. Values: N = Normal T = Timeout O = Other P= Processing Limitation ? = Other
Transmission Type	Type of transmission. Values: R = Retransmission S = Summary F = First transmission A= Appended. Reported train replaces previous train fragment. Previous train was terminated by time-out. (See “Termination Status” above.) ? = Other
Adjacent Track Occupied	Identification of an occupied adjacent track. Based on existence of tag reads from antennas on other track. Values: Y(es) or N(o).
Train Length	Total length of train, end to end, in feet or decimeters. (approximate)
Equipment Status	Equipment status code indicating site conditions/failures per event.[Warning and Fatal if vendor defined.] Values: A = Antenna warning N = Available B = Antenna fatal O = Presence loop off C = Communication warning P = Presence loop warning D = Communication fatal Q = Presence loop fatal E = Intertrack communication warning R = Reader/RF warning F = Intertrack communication fatal S = Reader/RF fatal G = Good T = Transducer warning H = Power supply warning U = Transducer fatal I = Power supply fatal V = Transducer off J = Power supply off W = Available K = Software setup failure X = External detector warning L = Available Y = External detector fatal M = Multiple (More than one problem)                  Z = Security ? = Other
Locomotive Count	Total count of all locomotives.
Locomotives Tagged	Count of all tagged locomotives.
Railcar Count	Total count of all equipment.
Railcar Tagged	Count of all tagged equipment.
Total Axles	Total count of all axles.

B.2.1.1  S-918A Consist Header Format Example

To customize the S-918A Report for specific host applications, select element and segment separators to use to format the report. This is in a text file specified in Edit Parameters.Session1.T94.T94FormatFile parameter. (Example is asterisk delimited. Space between segments is exaggerated for clarity)

*0474	Total Axles
*112	Railcars Tagged
*114	Railcar Count
*03	Locomotives Tagged
*03	Locomotive Count
*G	Equipment Status Code
*05939	Train Length
*N	Adjacent Track Occupied
*F	Transmission Type
*N	Termination Status
*B	Train Movement Type
*008	Train Speed (Avg)
*004	Train Speed (Min)
*011	Train Speed (Max)
*E	Unit of Measure
*0	Switch/Direction Indicator
*N	Direction of Travel
*G	Conversion Status (Cars)
*G	Conversion Status (Locomotives)
*0015	Sequence Number
*411	Data Format Version
*N	Daylight Savings Indicator
*060	Time Zone
*1956	Event Stop Time
*1947	Event Start Time
*150314	Event Start Date
*0000001	Site ID
*COMET	AAR Billing Code (Owner ID)
AEM	Segment ID (AEM=Consist Header)

B.2.2  S-918A RRE Segment Field Descriptions

Field Name

Description of Data

RRE

Rail Equipment (car and locomotive) Identifies tagged and untagged locomotives and railcars. Provides information about where the vehicle is in the train, which direction it is facing and its ID (if tagged). Also reports any inaccuracies that are seen when processing the car. At least one RRE is sent for each rail vehicle on the train. A second RRE is sent when two tags found on a vehicle have different IDs (called a ID mismatch). The RRE segment is always the first segment reported for each vehicle. Format ∙ Sequence Number. (3 numeric) Standing order of the vehicle in the train (1 = first). ∙ EGC Number. (1 alpha) Based on axles if tags are missing or have wrong EGC. If axles are also suspect, EGC = ?. Values: D = Locomotive R = Railcar (and former Non-Revenue Rail) ? = Unknown ∙ Equipment Initial. (4 alpha) Standard Carrier Alpha Code as read from tag. Blank if not tagged. ∙ Equipment Number. (10 numeric) Number of equipment as read from tag. Zero (0) if not tagged. ∙ Orientation. A = A end forward, B = brake end forward, U= unknown or not determined ∙ Field Reserved for Future Use. (1 character) ∙ Axle Conversion Code. (1 alpha) Values: G = Good. No problem reading axle input. B = Bad. Axle information may have caused an extra vehicle. S = Sequence Logically Correct. Not an extraneous vehicle, but may be misidentified. ∙ Tag Detail Status. (2 alpha) Accuracy of tag information.  First character: G = Good; tag data okay M = Mismatched identification (Owner code and equipment number only) L = Left side is bad. R = Right side is bad. C = Candidate platform. Software has detected that the target car may be part of a multipack, but is reported as an independent car. N = No tag read. ? = Other Second character: I = Individual platform tags, multi-packs incorrectly tagged. K = OK A = Axle error, number of axles in tag differed from axle pattern. B = Bearing error D = Unused tag read on equipment. E = Equipment Group Code error, EGC in tag differed from axle pattern. H = Performance, handshakes less than that predicted by Amtech speed and range guidelines. L = Length error. Length in tag differed from axle pattern. M = Multiple errors. O = Orientation errors. Tag applied on wrong side or wrong end of equipment. P = Platform code error. A multipack car had a bad platform code or a non-multipack car had a platform code. W = Window violation. Tags applied outside the AAR window for acceptable application. ? = Other ∙ Hand Shakes Antenna 0 (2 numeric) 99 = 99 or more. ∙ Hand Shakes Antenna 1 (2 numeric) 99 = 99 or more. ∙ Speed of Vehicle. (MPH or KPH) ∙ Axle Count. (2 numeric) Number of axles found on the car. ∙ Platform Count. (2 numeric) Number of platforms on the car.

B.2.2.1  S-918A RRE Format Example

The following example reports the RRE segment:

RRE

*001

*D

*CE

*0000009667

*B *

*G

*G*K

*32

*38

*004

*06

*01

Segment ID

Sequence Number

EGC Number

Equipment Initial

Equipment Number

Orientation

Field Reserved for Future Use

Axle Conversion Code

Tag Detail Status

Hand Shakes Antenna 0

Hand Shakes Antenna 1

Speed of Vehicle

Axle Count

Platform Count

B.2.2.2  Equipment Group Code (EGC) Values

The following are valid values and descriptions for the EGC field that reports in the S-918A , Compass, and TSC, formats:

Value	Character	Description
0	?	Other
1	@	Railcar Cover
2	A	Reserved
3	B	Reserved
4	C	Train Number Tag (Locomotive Variable Data)
5	D	Locomotive
6	E	End-of Train Device
7	F	Reserved
8	G	Generator Set
9	H	Reserved
10	I	Intermodal Container
11	J	Reserved
12	K	Reserved
13	L	Reserved
14	M	Reserved (Formerly Non-Revenue Rail)
15	N	Reserved
16	O	Reserved
17	P	Tractor (Power)
18	Q	Straight Truck
19	R	Railcar (Includes non-revenue railcars)
20	S	Dolly
21	T	Trailer
22	U	Reserved
23	V	Reserved
24	W	Rail Compatible Multi-Modal Equipment
25	X	Reserved
26	Y	Reserved
27	Z	Chassis
28	[	Passive Alarm Tag
29	\	Reserved
30	]	Reserved
31	^	Experimental User/Other

Table B.2-1: Equipment Group Code Values

B.2.3  S-918A Other Segment Format Field Descriptions

These value added segments are associated to the RRE segment they follow. All applicable segments will be added to the report.

For detailed, up to date information on the S-918A specifications refer to the AAR’s Manual of Standards and Recommended Practices, Railway Electronics, Section K.

Field Name	Description of Data
WRD	Equipment With Weird Wheel Patterns.
THI	Tag Health Information. Not implemented.
RTD	Raw Tag Data. Reports raw (unconverted) tag data. One RTD segment is sent for each unique tag read. Format ∙Segment ID. (3 numeric) ∙Sequence Number. (3 numeric) Standing order of the vehicle in the train (1 = first). ∙Raw Tag Data. (40 alphanumeric) Unconverted information from the tag. ∙Reader Number. (1 numeric) Number of the reader receiving the data. 0 = Rail equipment tier 1 = Lower intermodal tier 2 = Upper intermodal tier ∙Antenna Number. (1 numeric) Number of antenna. 0 = Near antenna 1 = Far antenna
CEQ	Conveyed Equipment (container, etc.) Format ∙Sequence Number. (3 numeric) ∙Equipment Group Code. (1 numeric) Number as read from the tag. ∙Owner Code. (4 alpha) Standard Carrier Alpha Code as read from the tag. ∙Owner Equipment Number (10 numeric) Number as read from the tag. ∙Length of equipment. (3 numeric) Number as read from the tag. ∙Tag Detail Status (1 alpha) Value: K = OK. ∙Hand Shakes Antenna 0 (2 numeric) Value 99 = 99 or more. ∙Hand Shakes Antenna 1 (2 numeric) Value 99 = 99 or more. ∙Orientation (1 alpha) Values: A/B, UNKNOWN. ∙Platform Code (1 alpha) Values: 0, A, B, C, D... ∙Tier (1 alpha) Values: T = Top, B = Bottom ∙Horizontal Quadrant (1 numeric) 1-4 Indicates location of equipment on vehicle within 1 of 4 zones defined along the length of the car. Assumes untagged car is operating "A" end first. Quadrants 1 through 4 are assigned starting from the "B" end.
DYL	Dynamic Locomotive. Reports dynamic locomotive tags found on the train. Electronically gathered locomotive data such as fuel, kilowatt-hours, and other status indicators are reported. One DYL segment is reported for each dynamic locomotive tag read. Format: ∙Sequence Number. (3 numeric) The unique, sequential number of the train. ∙Equipment Group Code. (1 numeric) EGC number as read from the tag. ∙Owner Code. (4 alpha) Standard Carrier Alpha Code as read from the tag. ∙Owner Equipment Number. (10 numeric) Number of equipment as read from the tag. ∙Tag Detail Status (1 alpha) K = OK ∙Hand Shakes Antenna 0 (2 numeric) 99 = 99 or more. ∙Hand Shakes Antenna 1 (2 numeric) 99 = 99 or more. ∙Alarm Codes (2 numeric) Values: 0 = No alarms 1 = Traction motor overspeed 2 = Brake pressure at last car less than 45 psi 3 = Brake pressure in main reservoir less than brake pipe pressure or (emergency           reservoir pressure + 15 psi) 4 = PCS open 5 = Wheel slip 6 = Dynamic brake warning 7 = Penalty brake 8 = Ground relay 9 = High horsepower setting 10–14 = Reserved 15= Multiple alarms ∙Volume of Fuel Tank (3 numeric) 100 gallon or 100 liter units. ∙Cumulative KW Hrs (5 numeric) 100 HP hour OR 100 KW hour units ∙Eng Temp Switch Trip (2 numeric) Values: 0 - 14 = # Times temperature switch was tripped. X = Cannot detect. ∙Rated Horsepower Attainable? (1 alpha) Y = Yes. N = No. X = Cannot detect. ∙Traction Motor Cutout? (1 alpha) Y = Yes. N = No. X = Cannot detect. ∙Dynamic Brakes Cutout? (1 alpha) Y = Yes. N = No. X = Cannot detect. ∙Dynamic Brake Operational? (1 alpha) Y = Yes. N = No. X = Cannot detect. ∙Engine Running? (1 alpha) Y = Yes. N = No. X = Cannot detect. ∙Locomotive Isolated? (1 alpha) Y = Yes. N = No. X = Cannot detect. ∙Cooling Water Low? (1 alpha) Y = Yes. N = No. X = Cannot detect. ∙Communication Indicator (1 numeric) 0 = Communications fault. 1 = Communication OK.
DYR	Dynamic Refrigerator. Not implemented. Contains information reported by dynamic refrigerator tags found on refrigerator units. These units can be attached to railcars, containers, and trailers. Reports fuel levels, temperature levels, and status indicators. One DYR segment report for each dynamic refrigerator tag read.
DYI	Dynamic Impact Recorder. Not implemented. Contains information gathered from dynamic impact tags about excessive impacts experienced by the carrying equipment (such as railcars, containers and trailers). Reported elements include the size of the impact (in G's), when the impact occurred, the type of impact, and how many impacts were recorded. One DYI segment is reported for each impact tag read. Format ∙Sequence Number. (3 numeric) The unique, sequential number of the train. ∙Equipment Group Code. (1 numeric) EGC number as read from the tag. ∙Equipment Initial. (4 alpha) Standard Carrier Alpha Code as read from the tag. ∙Equipment Number. (10 numeric) Number of equipment as read from the tag. ∙Tag Detail Status (1 alpha) K = OK ∙Hand Shakes Antenna 0 (2 numeric) 99 = 99 or more. ∙Hand Shakes Antenna 1 (2 numeric) 99 = 99 or more. ∙Alarm Code (1 alphanumeric) Values: 0 = No alarm. 1 = Digital input one alarm. 2 = Digital input two alarm. 3 = Digital input three alarm. 4 = Digital input four alarm. F = Input recorder low battery. ∙Impact Axis or Analog Port (1 numeric) 0 = X Axis. 1 = Y Axis. 2 = Z Axis. 3 = Analog port #1. 4 = Analog port #2. 5 = Analog port #3. 6 = Analog port #4. 7 = Analog port #5. ∙Impact or Analog Measurement (3 numeric in tenths of a 'G') ∙Date of Measurement (6 numeric in YYMMDD format) ∙Time of Measurement (4 numeric in HHMM format) ∙Impact Counter (2 numeric) ∙Communication Indicator (1 numeric) Values: 0 = Communications fault. 1 = Communication OK. ∙Third Tag Indicator (1 alpha) Y = Tag was applied in addition to the standard railcar tags. N = Tag replaced one of the standard railcar tags.
ALM	Alarm Tag. Not implemented. Contains information about various alarms occurring on the equipment carrying alarm tags. These tags are not active until the alarming condition occurs. Alarming conditions currently include cushioning device failures and open doors. One ALM segment is sent for each alarm tag read. Format ∙Sequence Number. (3 numeric) Standing order of the vehicle in the train (1 = first). ∙Equipment group code (1 numeric) ∙Owner code (4 alpha) Standard Carrier Alpha Code. ∙Equipment number (10 numeric, includes leading zeros) ∙Tag detail status (1 alpha) K = OK E = Equipment group code error H = Performance O = Orientation error W = Window violation ? = Unknown problem with tag ∙Third tag (1 alpha) Values: Y(es) or N(o) ∙Alarm code (4 numeric) 0 = No Alarm 1 = Draft Gear Cushioning Unit Low Pressure - "A" End 2 = Draft Gear Cushioning Unit Low Pressure - "B" End 3 = Door Open 4 - 4095 = Reserved
GEN	Generator Set. Not implemented. Contains information electronically gathered from electricity generators carried by railcars, containers and trailers. Includes energy consumption (fuel and kilowatt hours), generator voltage, how the equipment is mounted, and other diagnostic indicators. One GEN segment is reported for each generator set tag read. Format ∙Segment ID. (3-alpha) Displays as "GEN". ∙Sequence Number. (3 numeric) Standing order of the vehicle in the train (1 = first). ∙Equipment group code (1 alpha) ∙Equipment Initial (4 alpha) Standard Carrier Alpha Code. ∙Equipment Number (10 numeric) ∙Tag detail status (1 alpha) Values: E - Equipment group code error H - Performance K - OK M - Miscellaneous / multiple errors O - Orientation error W - Window violation ? = Other. ∙Hand shakes antenna 0 (2 numeric) 99 = 99 or more. ∙Hand shakes antenna 1 (2 numeric) 99 = 99 or more. ∙Mounting code (1 numeric) Values: 0 = Not Used / Other 1= Underslung 2 = "Clip On" (Nose Mount) 3 = Nitrogen Clip 4 - 7 = Reserved for Future Use ∙Tare weight (5 numeric in pounds or kilograms) ∙Fuel capacity (2 numeric) Values: 0 = Not Used 1 = 150 liters or less 2 = 151 - 190 liters 3 = 191 - 230 liters 4 = 231 - 270 liters 5 = 271 - 310 liters 6 = 311 - 350 liters 7 = 351 - 390 liters 8 = 391 - 430 liters 9 = 431 - 470 liters 10 = 471 - 510 liters 11 = 511 - 550 liters 12 = 551 - 590 liters 13 = 591 - 630 liters 14 = 631 - 670 liters 15 = More than 670 liters ∙Voltage (2 numeric) 0 = Not used / Other 1 = 230 volts 2 = 460 volts 3 -= 7 = Reserved
HAT	Railcar Cover. Contains information about covers used on railcars. Reports cover type, length and how cover is fastened to railcar. There can be multiple covers on each railcar. One HAT segment reports for each railcar cover tag read. Format ∙Segment ID. (3 alpha) Displays as "HAT". ∙Sequence Number. (3 numeric) Standing order of the vehicle in the train (1 = first). ∙Owner Code. (4 alpha) Standard Carrier Alpha Code as read from the tag. Blank if not tagged. ∙Owner Equipment Number. (10 numeric) Number of equipment as read from the tag. Zero (0) if not tagged. ∙Length. (3 numeric in feet or decimeters) ∙Cover type. (Up to 2 numeric) Format 0 = 1 piece fiberglass 1 = 1 piece steel 2 = High profile steel 3 = First on - fiberglass - internal rib 4 = First off - fiberglass - internal rib 5 = First on - fiberglass - external rib 6 = First off - fiberglass - external rib 7 = First on - fiberglass - high profile 8 = First off - fiberglass - high profile 9 = First on - steel 10 = First off - steel 11-14 = Reserved for future definition by AAR. 15 = Other ∙Date built or rebuilt. (Up to 2 numeric, optional) Format 0 = Not used             9  = 1979          18 = 1988 1 = 1971 or earlier   10 = 1980          19 = 1989 2 = 1972                  11 = 1981          20 = 1990 3 = 1973                  12 = 1982          21 = 1991 4 = 1974                  13 = 1983          22 = 1992 5 = 1975                  14 = 1984          23 = 1993 6 = 1976                  15 = 1985          24 = 1994 7 = 1977                  16 = 1986          25 = 1995 8 = 1978                  17 = 1987          26 = 1996 (etc.) ∙Insulated? (1 alpha) Values = Y(es) or N(o). ∙Fitting Code/Lifting Bracket (1 numeric) 0 = C hooks 1 = Clamp device 2 = Electric coil grab 3 = Mechanical coil grab 4 = Multiple capability - electric, mechanical, and "C" hooks 5 - 6 = Reserved for future definition by AAR 7 = Other ∙Owner code of associated railcar. (4 numeric, optional) ∙Owner equipment number of associated railcar. (10 numeric, optional)
TST	Test Tag. Not currently used.
XHB	External Hot Box Interface.
XSC	External Scale Interface. Reports car weight information from track scales. One XSC segment reports for each message from the scale. ∙Segment ID. Displays as “XSC”. ∙Sequence Number. (3 numeric) Standing order of the vehicle in the train (1 = first). ∙Weight Type. (1 alpha) Values: G = Gross N = Net T = Tare ? = Unknown ∙Weight Status. (1 alpha) Values: K = OK L = Overload E = Engine O = Out of synchronization (scale sequence error). ? = Other. ∙Weight. (1 numeric in pounds or kilograms)
XFW	External Flat Wheel Interface.
XAT	External Acoustic Interface.
EOT	End of Train. Format ∙Sequence Number. (3 numeric) ∙Equipment Group Code. (1 numeric) Number as read from tag. ∙Owner Code. (4 alpha) Standard Carrier Alpha Code as read from tag. ∙Owner Equipment Number. (10 numeric) Number as read from tag. ∙Hand Shakes Antenna 0. (2 numeric) Value: 99 = 99 or more. ∙Hand Shakes Antenna 1. (2 numeric) Value: 99 = 99 or more. ∙Tag Detail Status. (1 alpha) K = OK.

B.2.4  S-918A EOC End of Consist Field Descriptions

Field Name	Description of Data
EOC	End of Consist. Serves as the mandatory, terminating segment of the train consist. Is always the last segment of the consist report. Format ∙Total Byte Count. (10 numeric) Displays total byte count from the consist header up to, but not including, the last segment of the consist report.

B.2.4.1  S-918A EOC Format Example

The following example reports the EOC segment:

EOC	*0000006309
Segment ID	Total Byte Count

B.2.5  S-918A Maintenance (AHM) Header Format Field Descriptions

Field Name	Description of Data
Segment ID	“AMH” indicates what follows is a maintenance report.
AAR Billing Code	Universal site identification code unique for each APU. Format Zero (0) = railroads, non-zero = non-railroads (#) Standard AAR billing codes (railroads), unique substitutes for non-railroads (#####)
Site ID	Station numbers or unique owner ID (########)
Event Start Date	Format (in local time) Event start date (YYMMDD)
Event Start Time	Format (in local time) Event start time (HHMM)
Event End Time	Format (in local time) Event stop time (HHMM)
Time Zone	Time zone (3 numeric) GMT plus ##.# (decimal assumed) 050 = Eastern 060 = Central 070 = Mountain 080 = Pacific
Daylight Savings Time Indicator	Daylight savings indicator (Y = Yes, N = No)
Data Format Version	Data Format Version Number (#.## with . assumed) First digit = Major change (May not be backwards compatible) Second digit = Major enhancement (Is backwards compatible) Third digit = Processing upgrade
Sequence Number	Site message sequencing number. Number incremented after each successful report transaction.
Software Version Number	AEI System Software Version Number (#.## with . assumed) First digit = Major change (May not be backwards compatible) Second digit = Major enhancement (Is backwards compatible) Third digit = Processing upgrade
Century	Century (version dependent, 2 digit century)

B.2.5.1  S-918A Maintenance Header Format Example

AMH	*COMET	*0000001	*150624	*0512	*0000	*060	*Y	*412	*6044	*511
Segment ID  (AHM=Maintenance Header)	AAR Billing Code	Site ID	Event Start Date	Event Start Time	Event Stop Time	Time Zone	Daylight Savings Indicator	Data Format Version	Sequence Number	Software Version

B.2.6  S-918A Maintenance Message Field Descriptions

Field Name	Description of Data
MTS	Maintenance Data. Provides information about each event recorded by the site status logger. Includes when the reported event occurred, the event type, and supporting information about the event. One MTS segment is reported for each message contained in the unit's outgoing maintenance log. Format: ∙Segment ID. (3 alphanumeric)-Displays as ”MTS”. ∙Event Date. (6 numeric) Date of the event in YYMMDD format. ∙Event Time. (6 numeric) Time of the event in HHMMSS format. ∙Event Code. (4 numeric) Identifies which event occurred. ∙Severity Level. (1 numeric) Indicates how serious the event was. Always displays as “N”. N = Normal. Informational only. W = Warning. Event may affect system operation. F = Event relates to a system failure. ∙Originating Process ID. (3 numeric) Indicates which APU-102 process reported the event. ∙Sequence Number. (4 numeric) Indicates the train sequence number to which the event applies. ∙Message. (20 alpha) Text message used to identify the event. ∙Additional Text (32 alpha) Free-form text message containing additional details about the event. ∙End of Line. Uses the specified segment separator.
EMS	End of Maintenance. Serves as the terminating segment for the maintenance report. This is a mandatory segment that is always the last segment of the maintenance report. Format ∙Segment ID. (3 alpha) Displays as "EMS". ∙Total byte count. (10 numeric) Total byte count for the maintenance report. Count is from the maintenance header up to but not including this segment.

B.2.6.1  S-918A Maintenance Message Format Example

The following example reports the MTS and EMS segments:

MTS	*150624	*011141	*0018	*N	*015	*4140	*Remote Access Init	*COMET94S.ACC
Segment ID	Event Date	Event Time	Event Code	Severity Level	Originating Process ID	Sequence Number	Message	Additional text

EMS	*0000002280
Segment ID	Total Byte Count

B.3  Full Consist Record Format (LF)

B.3.1  Full Consist Format Field Descriptions

Field Name	Description of Data
Car	Car position in the train in sequential order.
EGC	Numeric equipment code.
Car ID	Car owner identification and the car number.
Ts	Tag status. Valid values: G = Good (both tags read) L = Left tag missing R = Right tag missing
Or	End of the car facing the front of the train.
Ax	Number of axles found on the car.
LenFT	Length of the car in feet.
MPH	Speed at which the car passed the site.
Tr
PC	Platform code for that car.
Pp
A0	Number of times (handshakes) the tag was read on antenna 0.
A1	Number of times (handshakes) the tag was read on antenna 1.
Fuel(L)	Amount of fuel found on the engine, if programmed.
Spare	Information programmed into spare field one.

B.3.1.1  Full Consist Format Example

Car EGC   Car ID    Ts Or Ax  LenFT MPH   Tr PC Pp A0  A1  Fuel(L) Spare

--- --- ----------- -- -- --- ----- ----  -- -- -- --- --- ------- --------

1   5   COMT009667   G  B  6   66    4.1   -  -  -  32  38  ------- SD70M 

2   5   COMT009516   G  A  6   69    5.0   -  -  -  36  36  ------- SD70M 

3   5   COMT009454   G  A  6   66    5.1   -  -  -  33  39  ------- SD70M 

4   19  UFIX010136   G  A  4   51    5.3   -  -  -  50  46  ------- A0

5   19  UFIX020080   G  A  4   50    5.5   -  -  -  42  45  ------- A0

B.4  Compass Format (LC)

B.4.1  Compass Header Format Field Definitions

Field Name	Description of Data
Read Level	For COMPASS interpretation. Always set to 4.
Task ID	For COMPASS interpretation. Always set to 02.
Site Type	Currently not used. Displays blank.
Reader Number	Reader that reads the tag.
Report Status	Indicates the status of the host report for that train. Y = Train reported OK. N = Train has not been reported, but will be reported when the APU-102 gets to its sequence number. P = Train is currently being reported or is next to be reported when the telephone line becomes available. E = Train was reported, but an error was found when the APU-102 correlated the axles and the tags. X = Train was not reported due to an inhibit such as the age time-out, or the train was too old. F = Train information was not reported due to an unknown condition. Occurs if none of the above conditions could be identified.
Station Number	Station number assigned to the APU-102 site.
Direction	Direction the train was traveling when it entered the APU-102 site. Values: N = North S = South E = East W = West
Event Date	Date the train arrived at the APU-102 site in YYYYMMDD format.
Event Time	Time the train arrived at the APU-102 site in HHMM format.
Time Zone	Time zone of the APU-102 site. Values: 1 = Eastern 2 = Central 3 = Mountain 4 = Pacific
Locomotive Count	Count of all locomotives that were recognized by the APU-102 - tagged and untagged.
Locomotives Tagged	Count of all locomotives that were recognized to have at least one AEI tag (EGC = 5).
Car Count	Count of all equipment recognized on the train as a railcar - tagged and untagged. Multiple-platform articulated cars are counted as one car. Includes cabooses, but not lost axle groups.
Cars Tagged	Count of all the railcars that have been recognized to have at least one AEI tag (EGC = 19). Does not include locomotive tags and EOT tags.
Containers Tagged	Number of tagged containers found on the train (EGC = 10).
Trailers Tagged	Number of tagged trailers found on the train (EGC = 21).
Chassis Tagged	Number of tagged chassis found on the train (EGC = 27).

B.4.1.1  Compass Header Format Example

The following is an example of the Compass header data as it would appear on the consist report:

4O2 1 00001N1996031411272003003114112100000000

The example below defines the individual header segments:

4	02		1		00001	N	19960314	1127	2	003	003	114	112	100	000	000
Read Level	Task ID	Site Type (Not currently used.)	Reader Number	Report Status (Not currently used.)	Station Number	Direction	Event Date	Event Time	Time Zone	Locomotive Count	Locomotives Tagged	Car Count	Cars Tagged	Containers Tagged	Trailers Tagged	Chassis Tagged

B.4.2  Compass Tag Format Field Definitions

Field Name	Description of Data
EGC	Association of American Railroads (AAR) equipment group code number in numeric format.
Car Initials	Initials on the side of the car.
Equipment Number	The number assigned to that piece of equipment by the owner.
Orientation	Shows which end of the equipment was leading in relation to the direction of the train. Values: A, B, N, S, E, W
Platform Code	Identifies the platform the equipment is on. A or B = Platform location of the equipment. 0 = Not an articulted car, no platform.
Tag Status	Identifies the tag status on the equipment. G = Both tags on the piece of equipment were read. R = Only the right side tag was read. L = Only the left side tag was read.

B.4.2.1  Compass Tag Format Example

The following is an example of the Compass tag data as it would appear on the consist report:

05COMT  9516N0G

05COMT  9454N0G

19UFIX 10136A0G

19UFIX 20080A0G

19UFIX  2014A0G

The example below defines the individual tag data segments:

05	COMT	9516	N	0	G
EGC	Car Initials	Equipment Number	Orientation	Platform Code	Tag Status

B.5  TCS Record Format (LT)

B.5.1  TCS Header Format Field Descriptions

Field Name	Description of Data
Task ID	TCS task ID. Always =#@.
Site #	Unique number of the site.
CIRC 7	TCS CIRC7 of the location.
Site Name	City and state of the site.
Event Year	Year of the reported event.
Event Time	Month, day, hour, and minute of the reported event in MMDDHHMM format.
Loco Count	Total number of locomotives.
Locos Tagged	Number of locomotives tagged.
Car Count	Total number of cars.
Cars Tagged	Number of cars tagged.
Containers Tagged	Number of containers tagged.
Trailers Tagged	Number of trailers tagged.
Chassis Tagged	Number of chassis tagged.
Train Direction	Direction of train travel. Values: N = North S = South E = East W = West
Railroad	Railroad that owns the site.
SPLC	SPLC of the site.
Conversion Status	Conversion integrity. Values: G = Good L = Locomotives are correct, but cars are not guaranteed B = Bad
Sequence	Sequence. Decimal, starting from 1.
Event End Time	End time of the reported event in hours and minutes (HHMM format).

B.5.1.1  TCS Header Format Example

The following is an example of the TCS header as it would appear on the consist report:

=#@001 BR549Anywhere 201103141947003003114112000000000NCOMT 0000000G0015195605941008

The example below defines the individual header segments:

008	Average speed
05941	Length
1956	Event End Time
0015	Sequence
G	Conversion Status
0000000	SPLC
COMT	Railroad
N	Train Direction
000	Chassis Tagged
000	Trailers Tagged
000	Containers Tagged
112	Cars Tagged
114	Car Count
003	Locos Tagged
003	Loco Count
031411947	Event Time
0314	Event Date
2011	Event Year
Anywhere	Site Name
BR549	CIRC 7
001	Site #
=#@	Task ID

B.5.2  TCS Tag Format Field Descriptions

Field Name	Description of Data
Sequence Number	Sequence of equipment in consist.
Equipment Code	AAR standard alphabetic code for the type of equipment. (See Table B-1: Equipment Group Code Values for code definitions.)
Initial of Equipment	Initial of the equipment.
Equipment Number	Number of the equipment.
Orientation:	A or B end of equipment closest to front of train.
Platform Code	Platform code for articulated cars.
Tag Status:	L = Left tag missing. R = Right tag missing. G = Equipment tagged correctly. M = Equipment has two tags with different equipment IDs.
Ant0 Handshake Count	Number of handshakes on antenna 0.
Ant1 Handshake Count	Number of handshakes on antenna 1.
Speed	Speed at current time.

B.5.2.1  TCS Tag Format Example

The following is an example of the TCS tag data as it would appear on the consist report:

001DCOMT009667B G 03203804

The example below defines the individual tag data segments:

001	D	COMT	009667	B		G	032	038	04
Sequence Number	Equipment Code	Initial of Equipment	Equipment Number	Orientation	Platform Code	Tag Status	Ant0 Handshake Count	Ant1 Handshake Count	Speed