4-ch High Speed Counter/Frequency Module

ADAM-5081 is a 4-Channel High Speed Counter/Frequency Module, users can select either counter or frequency mode for data input. This high speed module can support a high input frequency from 5Hz to 1MHz. And it provide a noise filter function 1~65000μsec. ADAM-5081 offers users flexible and versatile applications such as counter, frequency, alarm setting, Up / Down, Up, A/B phase or Bi-direction Functions.
Add to WishlistAdd to Compare


  • Minimum Pulse Width: 1μ sec. (Frequency/Counter Mode)
  • Function Mode: Counter (Up/Down, Bi-direction, Up, A/B Phase) Frequency
  • Input Frequency: Frequency Mode: 5Hz ~1MHz Counter Mode: 1MHz max.
  • Isolated Voltage: 2500 Vdc
  • Programmable Digital Noise Filter: 1~65000μ sec.
  • 4 channels for Counter, 8 channels for Frequency
  • Counter Aux. Function: Initial preset, hi-low alarm setting, alarm digital output mapping, overflag
Amplicon Middle East-Advantch-ADAM-5081

4 x High Speed Counter/Frequency Module





Power Consumption

1.1 W (Max.)

Counter Aux. Function

Initial preset, hi-low alarm setting, alarm digital output mapping, overflag

Input Frequency

5 Hz ~ 1 MHz max. (frequency mode), 1 MHz max. (counter mode)

Input Level

Isolated or TTL level

Isolation Input Level

Logic level 0: 3 VDC max, Logic level 1: 10 ~ 30 VDC

Isolation Voltage

2,500 VRMS

Maximum Count

4,294,967,295 (32 bit)

Minimum Input Current

2 mA (isolated)

Minimum Pulse Width

h 1μsec. (frequency mode), 1μsec. (counter mode)


Counter (up/down, bi-direction, up, A/B Phase), Frequency

Programmable Digital Filter

1 ~ 65,000 μsec (Noise Filter Function)

TTL Input Level

Logic level 0: 0 ~ 0.8 VDC, Logic level 1: 2.3 ~ 5 VDC

Data Sheet

Download / View