Yokogawa ADV859 Digital I/O Module

The Yokogawa ADV859 is a digital input/output (I/O) module tailored for industrial automation systems, specifically compatible with the CENTUM-ST2 control system. It features both input and output channels, offering flexible integration into various control processes. The module ensures reliable signal isolation, fast response times, and robust contact ratings for both input and output signals. With a dedicated cable (KS2) for external connections, it is designed for smooth integration in demanding industrial environments.

Technical Specifications

I/O Channels

• Input Channels: 16 channels
• Output Channels: 16 channels

Signal Isolation

• Isolated Channels: Ensures protection against electrical interference

Input Signals

• Contact Input:
  • OFF Signal: 100 kΩ or more
  • ON Signal: 200 Ω or less
  • Minimum Current (short-circuited contacts): 1.25 mA
• Voltage Input:
  • OFF Signal: 4.5 to 25 V DC
  • ON Signal: ±1 V DC, 200 Ω or less

Input Contact Rating

• Voltage: 5 V DC
• Minimum Current: 20 mA or more for reliable operation

Pushbutton Input Function

• Not supported

Response Times

• Input Response Time: 8 ms (for status input)
• Output Response Time: 16 ms or less

Output Signals

• Output Type: Transistor contact
• Output Contact Rating:
  • Inductive and resistive loads: 30 V DC, 100 mA

Pulse Width and Delay

• Pulse Width: 8 ms to 7200 s
• Pulse Width Resolution: 8 ms, with a 1 ms delay for ON/OFF switching

Current Consumption

• Maximum Current Consumption: 450 mA (5 V DC)

Weight

• Approximate Weight: 0.30 kg

External Connection

• Cable: Dedicated cable (KS2)