Monitoring system elements overview

The monitoring system may include the following elements:

Analog sensors;
Discrete sensors;
Virtual sensors (elements);
Notifications;
Units;

All the available elements of the system are given in table ctlAllElementsTable

Example. View available system elements:

$ snmptable -Ci -Cb -v2c -cread 192.168.0.193 VUTLAN-SYSTEM-MIB::ctlAllElementsTable

 SNMP table: VUTLAN-SYSTEM-MIB::ctlUnitElementsTable
   Id   Module Num      Class          Type             Name           State  Value            Spec
 201001      1  -1   "analog" "temperature"    "Temperature"         "alarm" "31.5"              ""
 203001      1  -2   "analog"     "voltage"        "Voltage"       "warning" "11.3"              ""
 301001      2  -1   "switch"       "relay"   "Analog Power"            "on"   "on"              ""
 102001      3   1   "switch"      "outlet"        "Relay-1"           "off"  "off"              ""
 102002      3   2   "switch"      "outlet"        "Relay-2"           "off"  "off"              ""
 102003      3   3   "switch"      "outlet"        "Relay-3"           "off"  "off"              ""
 102004      3   4   "switch"      "outlet"        "Relay-4"           "off"  "off"              ""
 101001      4   1 "discrete"         "dry"          "Dry-1"        "normal"   "on" "reverse=\"1\""
 101002      4   2 "discrete"         "dry"          "Dry-2"        "normal"   "on"              ""
 101003      4   3 "discrete"         "dry"          "Dry-3"        "normal"   "on"              ""
 101004      4   4 "discrete"         "dry"          "Dry-4"        "normal"   "on"              "" 
 401001      5   1   "devhwr"      "reader"        "iButton" "not connected"     ""              ""
 301001      5  -1   "switch"       "relay"  "iButton Power"            "on"   "on"              ""
 102001      2   1 "discrete"        "door"       "Analog-1"        "normal"   "on"              ""
 204001      2   2   "analog"    "fvoltage"       "Analog-2"           "low"  "0.0"              ""
 402001     11   1   "devhwr"     "usb-cam" "USB Web camera"       "unknown"    "-"              ""
 201002      2   3   "analog" "temperature"       "Analog-3"         "alarm" "28.5"              ""

Example. Getting the measured value for the system element with ID=201002:

$ snmpget -v2c -cread 192.168.0.193 VUTLAN-SYSTEM-MIB::ctlUnitElementValue.201002

or without MIB-file

$ snmpget -v2c -cread 192.168.0.193 .1.3.6.1.4.1.39052.1.3.1.7.201002

there 7 - number of table row associated with sensor value, 201002 - sensor ID.

Example. Changing the name of the element with ID=102003:

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Monitoring system elements overview

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