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Memory Map |
An EOL Zenith data-logger device provides measurement variables by using a proprietary protocol, based on the Modbus standard. Therefore, these variables are addressed in the Holding Registers area of that device. The first 7 (seven) provided variables have a fixed mapping, according to the next table.
Fixed mapping
Address |
Variable |
|---|---|
40001 |
Identifier |
40003 |
Battery |
40005 |
Hour |
40007 |
Minute |
40009 |
Day |
40011 |
Month |
40012 |
Year |
NOTE |
Since the variables stored by this device have a Float data type with 4 (four) bytes and registers in Modbus standard are composed by a Word data type with 2 (two) bytes, a variable is composed by 2 (two) registers of this device. Therefore, the addressing happens every 2 (two) addresses. |
The other registers provided for reading in an EOL Zenith data-logger device have a variable mapping. However, there is a typical configuration, shown on the next table.
Typical variable mapping
Address |
Variable |
|---|---|
40015 |
Snapshot V1 |
40017 |
Average V1 |
40019 |
TI30_1: turbulence intensity 1 (30 s) |
40021 |
Variance 1: 10 min |
40023 |
Maximum V1 |
40025 |
Minimum V1 |
40027 |
Snapshot V2 |
40029 |
Average V2 |
40031 |
TI30_2: turbulence intensity 2 (30 s) |
40033 |
Variance 2: 10 min |
40035 |
Maximum V2 |
40037 |
Minimum V2 |
40039 |
Snapshot V3 |
40041 |
Average V3 |
40043 |
Maximum V3 |
40045 |
Minimum V3 |
40047 |
Snapshot direction 1 |
40049 |
Average direction 1 |
40051 |
Snapshot direction 2 |
40053 |
Average direction 2 |
40055 |
Snapshot temperature |
40057 |
Average temperature |
40059 |
Snapshot HR |
40061 |
Average HR |
40063 |
Snapshot pressure |
40065 |
Average pressure |
40067 |
Snapshot vertical anemometer |
40069 |
Average vertical anemometer |
NOTE |
The previous table describes a typical configuration but, when using the manufacturer's software, users can configure a memory map. In this case, the variables may have their addresses changed. |