3AT350.6 B & R Automation
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The B & R Automation 3AT350.6 is part of the System 2005 Controllers series and offers 4 resistance measurement inputs with a PT100 sensor type, conforming to IEC/EN 60751 standards. It features an integrated converter with a resolution of 13500 steps, a basic accuracy of ±0.1% at 20°C, and has an IP20 protection rating. The module supports 3-wire connection, LED status indication, and a total power requirement of 4.0 W.
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Product Description:
The 3AT350.6 module is produced by B&R Automation for integration into the System 2005 Controllers series. As a plug-in resistance input unit, it mounts on the system base carrier and delivers temperature or process feedback from platinum sensors directly to the PLC backplane. By converting analog resistance values into integer data, the module lets the controller supervise thermal loads, regulate heaters, or implement safety interlocks in distributed industrial automation systems.
This unit reaches a basic precision of ±0.1% at 20 °C, so the measured value deviates from the true sensor resistance by no more than one-tenth of a percent under reference conditions. An internal converter digitizes each channel at 13 500 steps, which improves the resolution available to the CPU during proportional-integral control routines. There are 4 inputs, enough to monitor multiple zones without adding extra hardware. Field wiring uses a 3-wire scheme that reduces lead resistance errors and provides symmetrical sensing paths. The module is optimized for the IEC/EN 60751 platinum curve and accepts the dedicated PT100 element, allowing use of a standardized sensor type across the installation.
Total dissipation stays within 4.0 W, which simplifies enclosure heat calculations and permits tight cabinet packing. An IP20 housing prevents accidental finger contact while remaining compatible with forced-air racks. The digital data are transferred in INT format, so the host CPU can perform signed arithmetic without additional casting. The module is intended for Resistance Measurement, and channel-to-PLC isolation blocks common-mode voltages while cross-channel isolation is omitted to keep conversion latency low. LED status indicators, separate attachment points for base and expansion carriers, and an integrated converter provide added diagnostic and mounting support.
Frequently Asked Questions about 3AT350.6:
Q: How many inputs are available on the 3AT350.6 module?
A: The 3AT350.6 supports 4 resistance measurement inputs.
Q: What sensor type and standard does the 3AT350.6 accept?
A: The module is compatible with PT100 sensors following the IEC/EN 60751 standard.
Q: What is the measurement accuracy of the 3AT350.6 at 20°C?
A: This module offers a basic accuracy of ±0.1% at 20°C for its measurements.
Q: What type of connection is required for the 3AT350.6 inputs?
A: The 3AT350.6 uses a 3-wire connection type for input signals.
Q: How does the 3AT350.6 indicate its diagnostic status?
A: A LED status indicator provides diagnostic information on the 3AT350.6.
