Change of Identity

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Overview

One or more Change of Identity messages may be sent for a non-passenger (freight or engineering) train, after activation, where the class of the train is to change. This will happen if the train will run without wagons (i.e. a Class 6 service runs as a Class 0), or if the train is carrying a wagon with a defect and must run at a slower speed.

Data structure

{
    "header": {
        "msg_type": "0007",
        "source_dev_id": "V2WX",
        "user_id": "#WAELKNK",
        "original_data_source": "SDR",
        "msg_queue_timestamp": "1511531881000",
        "source_system_id": "TRUST"
    },
    "body": {
        "current_train_id": "",
        "train_file_address": "BAX",
        "train_service_code": "56609010",
        "revised_train_id": "86417G1J24",
        "train_id": "86678V1J24",
        "event_timestamp": "1511531880000"
    }
}

Header

Field Description
msg_type Set to '0007' for an change of identity message
source_dev_id LATA or CICS Session of the inputting terminal
user_id NCI signon of the inputting user
source_system_id Set to "TRUST" for a change of identity message
original_data_source Set to "SDR" or "TOPS" for an change of identity message
msg_queue_timestamp

Body

Field Description
train_id The 10-character unique identity for this train at TRUST activation time
current_train_id If this is the second or subsequent change of identity for a train, this field will contain the revised_train_id field from the previous change of identity message
revised_train_id The new 10-character unique identity for this train. You should continue to track the original train_id field as well, as some other message types will not contain this new ID.
train_file_address The TOPS train file address, if applicable
train_service_code Train service code as per schedule
event_timestamp The time, in milliseconds, when the train's identity was changed


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