2AI300.6 B & R Automation
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The B & R Automation 2AI300.6 belongs to the System 2010 Controllers series and features 16 voltage inputs with 12-bit resolution. It offers a basic precision of ±0.25% at 20°C and has a filter cutoff frequency of 400 Hz. With a depth of 185 mm, height of 285 mm, width of 40 mm, and power consumption of 9 W, this device provides input-pcc isolation but does not support input-input isolation.
Internal Product Review
The 2AI300.6 is a B & R Automation System 2010 voltage input module with 16 inputs for analog signal handling. A 1 msec conversion time and 12-bit resolution support accurate, responsive data acquisition in control systems. Basic precision of ±0.25% makes the module a strong choice for stable analog monitoring.
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Product Description:
The 2AI300.6 analog input module is produced by B & R Automation for the System 2010 Controllers series. As a voltage acquisition card, it installs alongside CPU and output modules to translate field-level sensor signals into the controller’s internal digital bus. By sampling multiple channels at consistent accuracy, the unit supports closed-loop tasks such as temperature monitoring, position feedback, and energy metering across automated machinery. Because it reads changing analog levels rather than simple on or off states, it fits applications that depend on stable trends and proportional control.
The module accepts voltage signals on 16 independent channels, allowing multiple measurement points to be handled in one slot. Each channel offers 1 MΩ of differential resistance, minimizing load on high-impedance transducers, and the conversion engine delivers 12-bit resolution so that small changes in the input appear as one part in 4096 steps. A single conversion completes within 1 msec, and a second-order analog filter with a 400 Hz cutoff precedes the A/D converter to attenuate higher-frequency noise. For common-mode disturbances, a rejection ratio of 40 dB / 50 Hz limits mains interference. Basic precision is ±0.25 % at 20 °C, and across the full operating range of 0 °C to 60 °C, readings remain within ±0.5 %. Input-to-input isolation is not provided, but input-to-PCC isolation is present to separate the field side from system ground.
System designers must also allocate resources for heat and space. The board draws 9 W from the backplane, a value that influences cabinet airflow calculations. Physical dimensions are compact, with a depth of 185 mm, a width of 40 mm, and a height of 285 mm, allowing dense stacking inside 19-inch racks or wall-mounted enclosures. The slim profile also helps keep adjacent module positions available for other I/O functions when control cabinets have limited room.
