7/03
IO-DI16, IO-DI16-L
I / O E x p a n s i o n M o d u l e s
Unitronics Industrial Automation
5
Digital Inputs
Each group of inputs may be wired as either pnp (source) or npn (sink) inputs.
npn (sink) input wiring
(shown in top group of inputs)
high-speed counter/frequency measurer
npn (sink)
I8
I9 I10 I11 I12 I13 I14 I15
P
N
0V
0V
+V
Circuit Protection Device
High-speed
Counter
Reset
High-speed
Counter
pnp (source)
IO-DI1 6
9
8
10 11 12 13 14 1 5
I7
I6
I5
I4
I3
I2
I1
I0
I8
I9 I10 I11 I12 I13 I14 I15
P
N
0V
P
N
0V
0V
+V
Circuit Protection Device
0V
+V
I8
I9 I10 I11 I12 I13 I14 I15
P
N
0V
0V
+V
High-speed
Counter
Reset
High-speed
Counter
pnp (source) input wiring
(shown in bottom group of inputs)