IP3202-B510-0000 by Beckhoff

The IP3202-B510-0000 is a compact remote input module produced by Beckhoff within the IP Compact Box Units series. Designed for mounting directly on a machine, it collects resistance-based temperature signals and transfers the digitized values over a CANopen fieldbus segment. By placing the conversion electronics in an IP-rated housing close to the sensors, the unit shortens analog cable runs and simplifies decentralized control layouts in industrial automation.

Each of the four analog inputs accepts a 2-wire or 4-wire connection to an RTD or a pure resistance element. Channel-to-bus separation is maintained by 500 V of electrical isolation, protecting upstream controllers from ground loops. Measurements have a resolution of 0.1 °C per digit, and the total conversion cycle for all channels is 260 ms, making the module suitable for slow or moderate thermal processes. Typical measurement deviation remains below ±1 °C. Four selectable digital input filters suppress line noise and help maintain stable readings. The module can also measure resistance directly, and the sensors receive power from the US load-voltage rail, so no separate excitation supply is required. Communication with the controller occurs through CANopen, with channel data delivered through the cyclic process image.

The housing is sealed to IP65/IP66/IP67, allowing washdown installation without an additional enclosure. Sensor leads terminate at a male M12 screw-in connector, while the module receives 24 V and carries fieldbus power through a four-pin power trunk. This trunk combines one M8 connector with one M8 socket to support a line topology. For cyclic transfer, the device publishes 4 × 16 bits of input data. An extended mapping option of 4 × 8 bits + 4 × 16 bits can be selected when compact addressing is beneficial. The selectable image arrangement allows the data length to fit controller memory constraints without requiring changes to the installed wiring.