IP3202-B518-0000 Beckhoff
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The Beckhoff IP3202-B518-0000 is part of the IP Compact Box Units series and features 4 analog input channels with a resolution of 0.1 degrees Celsius per digit. It supports CANopen as the fieldbus system and includes channel isolation of 500 volts with control and fieldbus isolation. This device uses integrated M8 and M12 connectors for power feed and signal connections, and allows sensor wiring by either 2-wire or 4-wire configurations.
Internal Product Review
The IP3202-B518-0000 is a Beckhoff compact box analog input module for CANopen networks with 4 analog inputs. M12 screw-in signal connections and 0.1 °C/digit resolution support accurate measurement and clean field installation. A well-executed option for reliable temperature acquisition in distributed I/O systems.
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Product Description:
The IP3202-B518-0000 is a compact analog input module produced by Beckhoff within the IP Compact Box Units series. Designed for mounting directly on machine frames, it connects temperature or process sensors to decentralized control systems and transmits measured values over a CANopen fieldbus. By bringing signal conditioning into the field, the module reduces cabinet wiring and shortens sensor cable runs in industrial automation lines. Its compact housing is suitable for distributed installations where sensors and control equipment are separated by long machine sections.
Its fieldbus interface follows the CANopen protocol, and communication is routed through an integrated T-connector that allows nodes to be added without external T-pieces. The module accepts four analog inputs, with each channel operating as a differential input. Each channel has 500 V of galvanic isolation from the logic domain, while isolation between channels is omitted to keep the housing narrow. A separate optocoupler barrier maintains isolation between the control and fieldbus circuitry. During acquisition, the converter scans all inputs in 260 ms, and any of the four programmable input filters can be selected to suppress noise. Sensors may be wired in either two-wire or four-wire configurations, and they draw excitation current from the load-supply rail. Downstream devices receive auxiliary 24 V through one M8 socket with four power pins.
Power is applied through one M8 connector that loops the supply through the IP segment. Once data is sampled, the device maps every channel into a process image of 4 × 16 bits, allowing the controller to read raw values without additional packing. Temperature resolution is fixed at 0.1 °C per digit, which supports precise closed-loop control in heating or cooling zones. If additional digital data is needed, the optional I/O block adds four 8-bit lines and four 16-bit lines without altering the analog allocation. Field sensors attach through a rugged M12 screw-in connector that resists vibration and provides secure field wiring. Control and field power share the same load voltage, so no separate sensor supply module is required.
