KL3142 Beckhoff
Wake Industrial LLC is not an authorized distributor of this product.
MPN: KL3142-0000
The KL3142 is an analog input module manufactured by Beckhoff as part of the KL Analog Input Modules series. It features 4 inputs with 12-bit resolution and supports 2-wire connection technology. The module measures 100 mm in height, 15 mm in width, and 70 mm in depth, and mounts on a 35 mm DIN rail.
Internal Product Review
The Beckhoff KL3142 is an analog input module with 4 inputs and 12-bit resolution. Its 2-wire connection technology and open-circuit detection support dependable signal acquisition and efficient diagnostics in automation systems. DIN rail mounting and IP20 protection make this module a strong choice for clean, organized control cabinet installations.
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Product Description:
The KL3142 is an analog input module manufactured by Beckhoff for the KL Analog Input Modules series. It interfaces field transducers with a controller by digitizing low-level analog signals and transferring the resulting data to the system bus. Used in distributed I/O stations, the module gathers process variables such as pressure, temperature, or flow and presents them to higher-level PLCs for monitoring and closed-loop control in industrial automation.
This module provides 4 independent input channels, so one terminal can monitor several sensors without extra wiring. Each channel uses a 12-bit resolution, providing 4,096 discrete steps for detailed measurements and diagnostic trending. Field devices are connected through a 2-wire scheme that combines the signal and supply return on the same pair, minimizing the terminal count in compact enclosures. Mechanical depth is limited to 70 mm, which helps maintain clearance behind dense rows of terminals. The enclosure carries an IP20 protection rating, which protects against contact with hazardous internal parts while remaining suitable for installation in an enclosed control cabinet. The housing is 100 mm tall, and its variable installation position allows horizontal or vertical mounting without derating. Open-circuit detection is available on every channel, enabling the controller to identify wiring breaks before they disrupt monitored processes.
Cabinet integration is simplified by a 35 mm DIN rail foot that snaps onto the common mounting rail of a Beckhoff terminal row. Digital data are transferred to the CPU through a process image occupying 4 x 16-bit words, so each channel appears as a signed word that can be read with a single instruction. The internal electronics receive their operating power through the K-bus, so the measurement circuit does not require a separate field supply. The housing is only 15 mm wide, allowing a high channel density when multiple KL3142 units are installed next to other analog or digital modules. Its narrow profile also leaves more rail space available for bus couplers, power terminals, and additional input or output modules within the same cabinet. The snap-on mounting arrangement supports orderly terminal rows without requiring separate brackets for each module.
