KL3468-0000 Beckhoff
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The Beckhoff KL3468-0000 is part of the KL Analog Input Modules series and features 8 single-ended inputs with a signal voltage range of 0 to 10 V. It offers 12-bit resolution, a measurement error of less than ±0.3% FS, and is designed for mounting on a 35 mm DIN rail. The module supports an operating temperature range of 0 to 55 degrees Celsius and has a protection rating of IP20.
Internal Product Review
The Beckhoff KL3468-0000 is an analog input module with 8 inputs for 0 to 10 V signal acquisition. Single-ended input technology and 12-bit resolution support clean, consistent measurement in standard control architectures. Measurement error below ±0.3% FS makes the module a strong choice for dependable analog monitoring.
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Product Description:
The KL3468-0000 is an analog input terminal manufactured by Beckhoff for the KL Analog Input Modules series. It converts low-level DC voltages from process sensors into digital words that a controller can read, supporting closed-loop monitoring and control in industrial automation cells. By concentrating analog acquisition on a compact rail-mounted slice, the module streamlines data collection in distributed I/O stations. It also lets the control system gather multiple field signals through a single terminal position, which helps keep wiring organized in dense machine cabinets.
Its input section is tailored for single-ended sensing and accepts a signal span of 0–10 V. The conversion engine samples each channel with a 12-bit resolution, balancing word length against update time inside the 8 x 16-bit process image that the controller retrieves on every cycle. A high input impedance of >130 kΩ limits sensor loading, while the terminal supports 8 concurrent channels so multiple transducers can share the same slice. Under calibrated conditions, the absolute deviation remains within <±0.3% FS, which helps reduce the need for software-based correction. Power for the electronics travels through the K-bus backplane, and all measurements reference the 0 V power contact that ties the analog domain to the common plant ground. This arrangement allows measured values to be transferred to the controller as regular process data without a separate external conversion stage.
For physical integration, the housing clips onto a 35 mm DIN rail, and its terminals are rated for a power-contact load of 10 A for downstream sensors that draw auxiliary current. Environmental resistance matches control-cabinet norms with a protection category of IP20. Reliable operation is maintained through an ambient span of 0–55 °C, while long-term storage can occur between -25 and +85 °C without degrading accuracy. The DIN-rail format also keeps the module aligned with adjacent terminals in a standard I/O row. The compact housing is suited to tightly packed I/O rows where analog measurement, orderly wiring, and straightforward panel installation are required.
