4-10 Input / Output MN1941WEN
4.3.1.6 Typical digital input wiring
Figure 11: Digital input - typical ‘active high’ input connection using a switch
Figure 12: Digital input - typical ‘active low’ input connection using a switch
Note: The circuits shown in Figures 11 and 12 are not suitable for use with fast inputs
DIN0 to DIN3. Using a mechanical switch, relay contacts or other source liable to
signal ‘bounce’ could cause unwanted multiple triggering.
Figure 13: Digital input - typical connections from an ABB MicroFlex e100
8
9
TLP281
‘X9’
6k2100R
NextMove e100
CREF1
DIN4
User
supply
24V
User
supply
GND
8
9
TLP281
‘X9’
6k2100R
NextMove e100
CREF1
DIN4
User
supply
24V
User
supply
GND
8
9
TLP 127
TLP281
11
1
‘X9’
‘X3’
6k2100R
NextMove e100
CREF1
DIN4
User
supply
24V
User
supply
GND
Status+
Status-
MicroFlex e100 /
equipment output