User's Guide

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4.2.11. hist info
Description
Show the data interval stored for a specific tag.
Usage
hist info <hist#> where hist# is the historian for which to display the dates of the
oldest and the newest record.
Remarks
To look-up the historian ID corresponding to a certain tag, use the hist map
command (see below). Depending on the number of records and the number of
tags in the data base, the response to this command may take up to 20 seconds.
Example
: hist info 5
Oldest: Sat May 23 19:20:00 2020
Newest: Mon Dec 14 16:50:00 2020
4.2.12. hist stat
Description
Used to display historian statistics.
Usage
hist stat.
Remarks
A table will be displayed with several columns. The following information is of
relevance for the Metrilog support technicians, therefore it is not important to
understand exactly what it means (refer to the example below):
Sensor: is the sensor index as stored in the RTU.
ID: is the sensor ID as retrieved from the M2M Gateway.
Type: is the sensor type (SDI-12, Thies, Davis, etc.).
Stream: is an internal index associating a historian with a sensor.
Block: a logical block in the storage (there are currently 768 blocks allocated to
the historians).
First: date of the oldest record for the sensor.
Last: date the newest record for the sensor.
Example
: hist stat
Sensor ID Type Stream Block First Last
-----------------------------------------------------------------------------------
0 78473 SDI-12 1 727 23/05/2020 19:20:00 14/12/2020 16:50:00
1 77178 SDI-12 0 725 23/05/2020 19:20:00 14/12/2020 16:50:00
2 79630 Intern 4 724 23/05/2020 19:20:00 14/12/2020 16:00:00
4.2.13. hist map
Description
Used to display the historians map.
Usage
hist map.
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