Chapter 3
Chapter 3 I/O Modules
3-75
ADAM-4080D Counter/Frequency Input Modules with LED Display
ADAM-4080D
CODE INPUT RANGE
50
51
DATA
ACQUISITION
MODULE
GATE 1-
GATE 1+
IN 1-
IN 0
GATE 0
D.GND
INIT*
(Y) DATA+
(G) DATA-
(R) +Vs
(B) GND
IN 1+
DO 0/LO
DO 1/HI
IN 1
COUNTER
FREQUENCY
GATE 1
IN 0+
IN 0-
GATE 0+
GATE 0-
(Non-isolation)
(Photo-isolation)
Figure 3-71 ADAM-4080D Counter/Frequency Input Module
with LED Display
Channels: 2 independent 32-bit counters (counter 0 and counter 1)
Input frequency: 50 kHz max.
Input mode: Isolated or non-isolated
Isolation input level:
- Logic level 0: +1 V max
- Logic level 1: +3.5 V to +30 V
- Input Impedance: 1.2 kΩ
Non-isolation input level (programmable threshold):
- Logic level 0: 0 to +5V (default = 0.8 V)
- Logic level 1: 0 to +5V (default = 2.4 V)
- Input Impedance: 50 MΩ