5
Construction
and Functionality
EDBC250SIO | 2.0
154
LEDs "Channel"; Safe digital inputs SI 0 .. SI 7
LED
position
Channel
Function
LED
Explanation
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"
11
Input
SI 7
SI 7 state
Off
No valid input signal on channel 7, logical "0"
Green
24 VDC supplied to channel 7, logical "1"
18
Inputs
SI 8 & SI 12
SI 8 & SI 12
diagnosis
Off
Normal operation
Red
Cross-fault or external power to SI 8 or SI 12
19
Inputs
SI 9 & SI 13
SI 9 & SI 13
diagnosis
Off
Normal operation
Red
Cross-fault or external power to SI 9 or SI 13
20
Inputs
SI 10 & SI 14
SI 10 & SI 14
diagnosis
Off
Normal operation
Red
Cross-fault or external power to SI 10 or SI 14
21
Inputs
SI 11 & SI 15
SI 11 & SI 15
diagnosis
Off
Normal operation
Red
Cross-fault or external power to SI 11 or SI 15
22
Input
SI 8
SI 8 state
Off
No valid input signal on channel 8, logical "0"
Green
24 VDC supplied to channel 8, logical "1"
23
Input
SI 9
SI 9 state
Off
No valid input signal on channel 9, logical "0"
Green
24 VDC supplied to channel 9, logical "1"
24
Input
SI 10
SI 10 state
Off
No valid input signal on channel 10, logical "0"
Green
24 VDC supplied to channel 10, logical "1"
25
Input
SI 11
SI 11 state
Off
No valid input signal on channel 11, logical "0"
Green
24 VDC supplied to channel 11, logical "1"
26
Input
SI 12
SI 12 state
Off
No valid input signal on channel 12, logical "0"
Green
24 VDC supplied to channel 12, logical "1"
27
Input
SI 13
SI 13 state
Off
No valid input signal on channel 13, logical "0"
Green
24 VDC supplied to channel 13, logical "1"
28
Input
SI 14
SI 14 state
Off
No valid input signal on channel 14, logical "0"
Green
24 VDC supplied to channel 14, logical "1"
29
Input
SI 15
SI 15 state
Off
No valid input signal on channel 15, logical "0"
Green
24 VDC supplied to channel 15, logical "1"
Note, information
The red "diagnosis" LEDs are disabled if the safe digital inputs are used with-
out the safe digital test pulse outputs.
The green "status" LEDs of the inputs will indicate the presence of a 24 VDC
signal at an input even if that input has not been set up in the configuration.
I