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4.4.2.Driver Related Map Descriptor Parameters
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| Node_Name |
| Name of Node to fetch data from |
| One of the node names | |||
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| specified in “Client Node | |||||
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| Descriptor” above | |
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| Data type. This parameter is not required |
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| except when defining Map Descriptors |
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| which write DOW (Day of Week) and | - |
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| Time value to the Carrier devices. When |
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| Data_Type |
| a write Map Descriptor checks the data |
| Occupancy_Time | |||
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| type it uses the information to convert the |
| Occupancy_DOW | ||
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| value extracted from the FieldServer’s |
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| Data Arrays into a suitable format for a |
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| write. Refer to Section 4.4.7. |
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| Length of Map Descriptor. When reading |
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| a compete table, set the length to the |
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| Length |
| maximum number of data values you |
| 1 – 1000 | |||
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| want stored. Additional information on the |
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| length parameter is provided in Appendix |
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| A.5. |
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| Address |
| This commonly used parameter is not required for this driver. | |||||
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| The name of the table to be polled, e.g. |
| Only ASCII characters are | ||
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| DISPLAY. Some system elements have |
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| multiple instances of the same table |
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| name. For example, the Terminal System |
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| Table_Name |
| Manager has 64 Temperature Zone |
| When using the table | |||
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| configuration tables named TZONE1 |
| name parameter to specify | ||||
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| though TZONE64. These tables are |
| a primary and secondary | ||
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| accessed by using both the primary & |
| table, leave a single space | ||
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| secondary table names, e.g. ‘TZCONF |
| between the two names. | ||
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| TZONE1’ |
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| Only ASCII characters are | |
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| If you wish to read the whole table, leave |
| permitted. Field names | ||
| Field_Name* |
| the field name blank or specify |
| never contain spaces. | |||
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| ‘EVERYTHING’. |
| They may not be longer | ||
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| than 10 characters long. | |
| Store_As* |
| Use the Ascii or AsciiLog format when you |
| Ascii, AsciiLog, Values | |||
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| are discovering the variables contained in |
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| a table by reading a table. Refer to 1.1 |
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4.4.3.Timing Parameters
Column Title | Function | Legal Values |
Scan_Interval | Rate at which data is polled | >0.1s |
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