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PC Based Industrial Automation

Featured Product

This months featured product is the ADAM-4520 RS-232 to RS-485 converter.
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Tel: 011-706-7913

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ADAM-6256 16-ch Isolated Digital Output Modbus TCP Module

Download PDFDownload the ADAM-6256 data sheet.


ADAM-6256 ModuleThe ADAM-6256 features 16 isolated digital outputs. The daisy-chained Ethernet ports simplify the wiring for multiple modules and eliminate the need for a dedicated port for each module.


  • Daisy chain connection with auto-bypass protection
  • Remote monitoring and control with smart phone/tablet
  • Group configuration capability for multiple module setup.
  • DI/O LED Indication
  • Flexible user-defined Modbus address
  • Intelligent control ability by Peer-to-peer and GCL function.
  • Multiple protocol support: Modbus TCP, TCP/IP, UDP, HTTP, DHCP, RESTful, SNMP and MQTT
  • Web language support: XML, HTML 5 and Java Script
  • System configuration backup
  • User Access Control
  • Easy mounting on DIN-rail, panel or piggyback


Digital Output

  • Channels 16 (Sink Type)
  • Output Voltage Range 10~30DDC
  • Normal Output Current 100mA (per channel)
  • Pulse Output Up to 5kHz

Ethernet Communications

  • 2 Port 10/100 Base-TX (for daisy-chain)
  • Protocol Modbus TCP, TCP/IP, UDP, HTTP, DHCP, RESTful, SNMP and MQTT
  • Port Connector 8-pin RJ-45 x 2
  • Protection Built-in 1.5KV magnetic isolation


  • Watchdog Timer System (1.6second) and Communication (programmable)
  • Supports Peer to Peer mode 1
  • Supports Graphical Condition Logic
  • Supports Modbus/TCP,TCP/IP,UDP and HTTP Protocols
  • Protection
    Overvoltage Protection ±35VDC
    Isolation Protection 2000VDC
  • Built-in TVS/ESD Protection
  • Power Reversal Protection


  • Dimensions (H x W x D) 70 x 130 x 30mm
  • Enclosure ABS + PC with solid mounting hardware
  • Mounting DIN 35 rail, stack or panel

Power Requirements

  • Power Input 10 - 30VDC (24VDC standard)
  • Power Consumption 3.5W @ 24 VDC


  • Operating Temperature -40 to 70°C
  • Storage Temperature -40 to 80°C
  • Operating Humidity 20 to 95% RH (non-condensing)
  • Storage Humidity 0 to 95% RH (non-condensing)