User guide

Chapter 5: Using the Web Interface
121
"alarmed" State
The state means the sensor is in the "abnormal" state, which is the
opposite of the normal state. Only a discrete sensor shows this state.
For a contact closure sensor, the meaning of this state varies based on the
sensor's normal state setting.
 If the normal state is set to Normally Closed, the alarmed state means
the contact closure switch is open.
 If the normal state is set to Normally Open, the alarmed state means
the contact closure switch is closed.
Tip: A contact closure sensor's LED is lit when in the alarmed state. If the
sensor module has two channels for connecting two switches, two LEDs
are available. Check which contact closure switch is in the "abnormal"
status according to the channel number of the LED.
"below lower critical" State
Only a numeric sensor shows this state.
This state means the sensor reading is below the lower critical threshold
as indicated below:
Reading < Lower Critical Threshold
"below lower warning" State
Only a numeric sensor shows this state.
This state means the sensor reading is below the lower warning threshold
as indicated below:
Lower Critical Threshold <= Reading < Lower Warning Threshold
Note: The symbol <= means smaller than (<) or equal to (=).
"above upper warningl" State
Only a numeric sensor shows this state.
This state means the sensor reading is above the upper warning threshold
as indicated below:
Upper Warning Threshold <= Reading < Upper Critical Threshold
Note: The symbol <= means smaller than (<) or equal to (=).
"above upper critical" State
Only a numeric sensor shows this state.
This state means the sensor reading is above the upper critical threshold
as indicated below:
Upper Critical Threshold <= Reading