Adam-4080 Counter/Frequency Input Modules - Advantech ADAM 4000 Series User Manual

When the alarm is in Momentary mode, the alarm will be turned OFF as soon as the
input value returns within the limits. The arrangement of coupling high and low alarm
states with digital output lines may be utilized to build ON/OFF controllers that can
operate without the host computer involvement.
3.16.1

ADAM-4080 Counter/Frequency Input Modules

Figure 3.51 ADAM-4080 Counter/Frequency Input Module
Channels: 2 independent 32-bit counters (counter 0 and counter 1)
Input frequency: 50 kHz max.
Input mode: Isolated or non-isolated
Protocol: ASCII, Modbus/RTU (E version)
Isolation input level:
- Logic level 0: +1 V max
- Logic level 1: +3.5 V to +30 V
- Gate Logic level 0: the same as the setting of Logic level 0
- Gate Logic level 1: the same as the setting of Logic level 1
- Input Impedance: 1.2 kΩ, 1kΩ (E version)
Non-isolation input level (programmable threshold):
- Logic level 0: 0 to 0.8V (default = 0.8 V)
- Logic level 1: 2.4 to 5V (default = 2.4 V)
- Gate Logic level 0: 0.8 V max
- Gate Logic level 1: 2.4 to 5V
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