456 Railroad Equipment Inquiry or Advice (004040)
This is the standard X12 004040 spec, with 4 loops and 27 segment positions, as OpenEDI JSON, an ediFabric C# template and an ediFabric Native model. To change it for a trading partner, customize it in the EDI Spec Builder.
Use the 456 spec in your code
ediFabric .NET
Add the C# template and its common files to your project, or reference the template NuGet package, and read 456 files into TS456 objects. See ediFabric .NET.
ediFabric Native
Map version 004040 to the Native model with set_map, then parse 456 files to JSON from Python, Java, C or C#. See Convert between EDI and JSON.
OpenEDI
Select Customize in Spec Builder to copy the spec under your own name, change it for your partner, and parse files against it in EdiNation, ediFabric Native or ediFabric Cloud. Read about OpenEDI.
Generate 456 classes in Python, Java, Node.js, Go, Rust or C
ediFabric Native returns each 456 as JSON, with the property names of the OpenEDI schema. To work with that JSON as typed objects, generate classes from the OpenEDI file in your language and deserialize the JSON into TS456. Serialize the objects back to JSON to build EDI with ediFabric Native. The classes keep the loops, segments, lengths and code lists, but not the EDI data formats, so validate files with ediFabric Native. Read more in Generate a class from OpenEDI.
Python: datamodel-code-generator. Node.js: openapi-typescript. Java, Go, Rust and C: OpenAPI Generator.
456 structure
Loops and segments of the standard 456, with their usage and maximum repeats.
| ID | Name | Usage | Max use |
|---|---|---|---|
| ST | Transaction Set Header | Optional | 1 |
| EIA | Beginning Segment for Equipment Inquiry or Advice | Mandatory | 1 |
| N8 | Waybill Reference | Optional | 10 |
| Loop LX | Assigned Number | Optional | 500 |
| LX | Assigned Number | Mandatory | 1 |
| N7 | Equipment Details | Optional | 1 |
| H5 | Car Service Order | Optional | 1 |
| IC | Intermodal Chassis Equipment | Optional | 1 |
| F9 | Origin Station | Optional | 1 |
| D9 | Destination Station | Optional | 1 |
| N9 | Reference Identification | Optional | 99 |
| N1 | Name | Optional | >1 |
| H3 | Special Handling Instructions | Optional | 6 |
| L5 | Description, Marks and Numbers | Optional | 15 |
| R2 | Route Information | Optional | 13 |
| VC | Motor Vehicle Control | Optional | 36 |
| PI | Price Authority Identification | Optional | 30 |
| Loop S1 | Stop-off Name | Optional | 12 |
| S1 | Stop-off Name | Mandatory | 1 |
| S9 | Stop-off Station | Optional | 1 |
| Loop IS1 | Estimated Time of Arrival and Car Scheduling | Optional | 1 |
| IS1 | Estimated Time of Arrival and Car Scheduling | Mandatory | 1 |
| ISC | Interline Service Commitment Detail | Optional | 99 |
| IS2 | Scheduled Events | Mandatory | 99 |
| N9 | Reference Identification | Mandatory | 5 |
| Loop ER | Rail Event Reporting | Optional | 99 |
| ER | Rail Event Reporting | Mandatory | 1 |
| N4 | Geographic Location | Optional | 1 |
| NA | Cross-Reference Equipment | Optional | 1 |
| ES | Equipment Status | Optional | 1 |
| SE | Transaction Set Trailer | Optional | 1 |