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# EIFDHDR - Field Definition Header

The Field Definition Header file contains one record for each field ID that can have a result displayed on the EIS Dashboard screen. Each record corresponds to a field ID in the EIVAL file and stores a display mask and math formula.

| Template: |
| IOLIST: | 0999 EIFDHDR: IOLIST FDH0$, FDH1$, FDH2$, FDH9$, FDH9$, FDH1, FDH4$, FDH5$, FDH6$
| String Sizes: | DIM FDH0$(8), FDH1$(50), FDH2$(20), FDH9$(230), FDH4$(8), FDH5$(4), FDH6$(1)

Key Definitions

| Key Number | Field | Description
| 0 | [1:1:8] | Field ID
| 1 | [2:1:50] + | Field Description +
|  | [1:1:8] | Field ID
|  | __________ |
|  | 3 segments |

Field Definition Header

| File Name: | EIFDHDR | Record Size: | 337(640)
| File Type: | Mkeyed - Dynamic | Number of Keys: | 2

| Field | Field Name | Variable | Description | A/N | Length | Note
| 1 | FIELDID | FDH0$ | Field ID | A | 8 |
| 2 | DESC | FDH1$ | Field Description | A | 50 |
| 3 | MASK | FDH2$ | Display Mask | A | 20 |
| 4 | MATH | FDH9$ | Math Formula | A | 200 |
| 5 | LCALV | FDH9$ | Last Calculated value | A | 30 |
| 6 | LCALD | FDH1 | Last Calculated Date | N | 7 | Julian
| 7 | LCALT | FDH4$ | Last Calculated Time | A | 8 | HH:MM:SS
| 8 | LCALTRM | FDH5$ | Last Calculated Terminal | A | 4 | Txxx
| 9 | LCALE | FDH6$ | Last Calculated Error Type | A | 1 | " " = OK
|  |  |  |  |  |  | E = Calc error
|  |  |  |  |  |  | ? = Setup error
|  |  |  |  |  |  | - = Interface
|  |  |  |  |  |  | * = Mask Error