5
Construction
and Functionality
EDBC250SIO | 2.0
156
"Channel" LEDs of Safety I/O-module SDI16
LEDs "Channel"; Safe digital inputs SI 0 .. SI 7
LED
position
Channel
Function
LED
Explanation
0
Inputs
SI 0 & SI 4
SI 0 & SI 4
Diagnosis
Off
Normal operation
Red
External power supply or cross-fault at SI 0 or SI 4
1
Inputs
SI 1 & SI 5
SI 1 & SI 5
diagnosis
Off
Normal operation
Red
External power supply or cross-fault at SI 1 or SI 5
2
Inputs
SI 2 & SI 6
SI 2 & SI 6
diagnosis
Off
Normal operation
Red
Cross-fault or external power to SI 2 or SI 6
3
Inputs
SI 3 & SI 7
SI 3 & SI 7
diagnosis
Off
Normal operation
Red
Cross-fault or external power to SI 3 or SI 7
4
Input
SI 0
SI 0 state
Off
No valid input signal on channel 0, logical "0"
Green
24 VDC supplied to channel 0, logical "1"
5
Input
SI 1
SI 1 state
Off
No valid input signal on channel 1, logical "0"
Green
24 VDC supplied to channel 1, logical "1"
6
Input
SI 2
SI 2 state
Off
No valid input signal on channel 2, logical "0"
Green
24 VDC supplied to channel 2, logical "1"
7
Input
SI 3
SI 3 state
Off
No valid input signal on channel 3, logical "0"
Green
24 VDC supplied to channel 3, logical "1"
8
Input
SI 4
SI 4 state
Off
No valid input signal on channel 4, logical "0"
Green
24 VDC supplied to channel 4, logical "1"
9
Input
SI 5
SI 5 state
Off
No valid input signal on channel 5, logical "0"
Green
24 VDC supplied to channel 5, logical "1"
10
Input
SI 6
SI 6 state
Off
No valid input signal on channel 6, logical "0"
Green
24 VDC supplied to channel 6, logical "1"
