Input LED
Each multi-input has its own LED, and the table below illustrates when the LED is on/off.
Input type
LED
Description
Digital input
On
Input is active
Off
Input is inactive
0(4) to 20 mA
On
Within input range 4 to 20 mA
Off
Outside input range 4 to 20 mA
(LED is flashing when in protec-
tion mode: >30 mA)
0 to 10 V
On
Within input range 0.2 to 10 V
Off
Outside input range 0.2 to 10 V
RMI
On
Within input range 10 to 2500 Ω
Off
Outside input range 10 to 2500 Ω
Pt100 sensor
On
Within selected input range (Low
range -50 to 250°C or high range:
-200 to 850°C)
Off
Outside selected input range
(Low range -50 to 250°C or high
range: -200 to 850°C)
Pt1000 sensor
On
Within selected input range (Low
range -50 to 250°C or high range:
-200 to 850°C)
Off
Outside selected input range
(Low range -50 to 250°C or high
range: -200 to 850°C)
Thermocouple
On
Within input range of selected
type of thermocouple
Off
Outside input range of selected
type of thermocouple
CIO 308 installation and commissioning
guide 4189341078 UK
Installation, mounting and wiring
DEIF A/S
Page 10 of 25
