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ADAM-4051
16-ch Isolated Digital Input Module with Modbus

ADAM-4051 Introduction

The ADAM-4051 is a 16-ch. Digital Input Module, built with 2500 VDC optical isolation, suitable for critical applications. Different from other modules, the ADAM-4051 accepts 10~50V input voltage to fit various digital signals, such as 12 VDC, 24 VDC, 48 VDC. Moreover, users can read the current status from the LED indications on the front panel.

ADAM-4051 Features

  • 16 digital input channels
  • Digital input for dry contact or wet contact
  • Input Voltage level: 10~15 Vdc
  • Over voltage protection: 70 Vdc
  • 2,500 Vdc optical isolation


ADAM-4051 Specification

  • General
    • Connectors: 2 plug-in terminal blocks (#14 ~ 28 AWG)
    • Power Input: Unregulated 10 ~ 30 VDC
    • Power Consumption: 1 W @ 24 VDC
    • Watchdog Timer: System (1.6 seconds)
    • Supported Protocols: ASCII command and Modbus/RTU
    • LED indicators
  • Digital Input
    • Channels: 16
    • Input Voltage: 50V maximum
    • Input Level
      • Dry contact
        • Logic level 0: open
        • Logic level 1: close to GND
      • Wet contact
        • Logic level 0: 3 V max
        • Logic level 1: 10 ~ 50 V
    • Note: Digital Input levels 0 and 1 can be inverted
    • Isolation Voltage: 2,500 VDC
    • Input Resistance: 5.2 k?
    • Overvoltage Protection: 70 VDC
  • Digital Output
    • Channels: 8 open collector to 30 V, 30 mA max. load
    • Power Dissipation: 300 mW
  • Environment
    • Humidity: 5 ~ 95% RH
    • Operating Temperature: -10 ~ 70 C
    • Storage Temperature: -25 ~ 85C

ADAM-4051 Ordering Information

  • ADAM-4051-BE (16-Ch Isolated DI Module w/ LED & Modbus)
  • ADAM-4520-D2E (RS-232 to RS-422/485 Converters)
  • PCLS-ADAMVIEW32 (SOFTWARE, HMI Software for ADAM I/O Products)
  • PWR-242-AE (POWER SUPPLY, DIN-rail Power Supply)
  • PWR-243-AE (POWER SUPPLY, Panel Mount Power Supply)
  • PWR-244-AE (POWER SUPPLY, Panel Mount Power Supply)


ADAM-4051
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