Electro Industries Shark 200T Especificaciones descargar pdf (Pagina 176)

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B: Modbus Map and Retrieving Logs

Electro Industries/GaugeTech

The Leader In Power Monitoring and Smart Grid Solutions

Electro Industries/GaugeTech

The Leader In Power Monitoring and Smart Grid Solutions

NOTES:

• When auto-increment is enabled, this value will automatically increment

so that the window will "page" through the records, increasing by

RecordsPerWindow each time that the last register in the window is read.

• When auto-increment is not enabled, this value must be written-to

manually, for each window to be retrieved.

• Log Retrieval Data Window: The actual data of the records, arranged according to

the above settings.

B.5.4: Log Retrieval

Log Retrieval is accomplished in 3 basic steps:

1. Engage the log.

2. Retrieve each of the records.

3. Disengage the log.

B.5.4.1: Auto-Increment

In EIG's traditional Modbus retrieval system, you write the index of the block of data

to retrieve, then read that data from a buffer (window). To improve the speed of

retrieval, the index can be automatically incremented each time the buffer is read.

In the Shark® 200 meter, when the last register in the data window is read, the

record index is incremented by the Records per Window.

B.5.4.2: Modbus Function Code 0x23

QUERY

Field Name

Example (Hex)

Slave Address 01

Function 23

Starting Address Hi C3

Starting Address Lo 51

1 2 ... 171 172 173 174 175 176 177 178 179 180 181 ... 297 298

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