Bachmann|AIO208| Analog I/O Module

Description
The Bachmann AIO208 is a universal analog input/output module with 8 configurable channels, designed for precise measurement and control of voltage, current, and temperature signals in industrial automation systems.

Features

• 8 multifunctional analog channels
• Supports voltage, current, Pt sensors, and thermocouples
• Dual-mode configuration per channel for flexible signal handling
• High-resolution 16-bit input and 14-bit output
• Adjustable filtering (4 kHz to 0.5 Hz) per channel
• Electrical isolation up to 500 V
• ColdClimate version available (AIO208 CC)

Technical Specifications

General Design

• Channels: 8 (configurable as input or output)
• Resolution:
  • Inputs: 16 bits with filter
  • Outputs: 14 bits
• Filter frequency: Adjustable per channel from 4 kHz to 0.5 Hz
• Overload, short-circuit, and reverse polarity protection
• Measurement range monitoring: ±105% adjustable

Signal Types

• Voltage input: ±10 V to ±10 mV
• Current input: 0(4) to 20 mA
• Temperature input: Pt100/Pt1000 (2-/3-/4-wire), thermocouples (J, K, T, N, E, R, S, B)
• Voltage output: ±10 V
• Current output: 0(4) to 20 mA

Electrical Performance

• Basic accuracy (at 25 °C):
  • Voltage: ±0.05 %FS (±10 V to ±100 mV), ±0.2 %FS (±10 mV)
  • Current: ±0.1 %FS (±20 mA), ±0.2 %FS (0–20 mA / 4–20 mA)
• Isolation voltage: 500 V (input/output to system)

Environmental Conditions

• Operating temperature: -30 °C to +60 °C
• Storage temperature: -40 °C to +85 °C
• Humidity (operation/storage): 5 % to 95 %, noncondensing (standard), with condensation (ColdClimate)