Description

Product Overview

The Beckhoff KL1712 is a specialized 2-channel digital input terminal designed for high-speed signal acquisition and precise process monitoring within Beckhoff’s modular EtherCAT I/O system.Unlike standard digital input modules,the Beckhoff KL1712 integrates advanced counter functionality,making it ideal for applications requiring accurate measurement of pulse signals,rotational speed(RPM),frequency,and totalized counts.This module is commonly used in industrial automation systems where monitoring of encoder pulses,flow meters,tachometers,or other pulse-generating sensors is essential.

Each of the two independent channels on the Beckhoff KL1712 supports 24 VDC digital input signals and features a high-resolution counter with multiple operating modes,including frequency measurement,period measurement,and total count(totalizer).With a maximum input frequency of up to 100 kHz per channel,the KL1712 delivers fast and reliable data capture,enabling real-time feedback for control and diagnostics.The module communicates via the high-performance EtherCAT fieldbus,ensuring deterministic data transfer to the PLC controller(e.g.,Beckhoff CX or CP series)with minimal jitter and low latency.

Designed for durability and ease of integration,the Beckhoff KL1712 is DIN rail mounted,features LED status indicators for signal and error monitoring,and operates reliably in harsh industrial environments.Its compact size and seamless compatibility with TwinCAT automation software make it a preferred choice for machine builders and system integrators seeking precise motion and process feedback.

Technical Specifications

Parameter Specification

Product Model Beckhoff KL1712

Manufacturer Beckhoff Automation

Product Type Digital Input Terminal with Counter

Number of Channels 2

Input Voltage 24 VDC(–15%/+20%)

Input Type PNP(sourcing),24 VDC

Max Input Frequency 100 kHz per channel

Counter Resolution 32-bit

Counter Modes Frequency,Period,Totalizer(Count Up)

Measurement Range(Frequency)1 Hz to 100 kHz

Response Time<5µs

Electrical Isolation Optical,up to 500 VDC

Bus System EtherCAT(E-bus)

Connection Method Spring clamp terminals

Operating Temperature–25°C to+60°C

Storage Temperature–40°C to+85°C

Protection Class IP20

Certifications CE,UL,cUL,GOST

Main Features and Advantages

The Beckhoff KL1712 offers several key advantages that make it stand out in automation applications requiring precision timing and counting:

High-Speed Counter Capability:With support for up to 100 kHz input frequency and 32-bit resolution,the KL1712 enables accurate measurement of fast-moving processes such as motor RPM,conveyor speed,or product flow rates.

Dual-Channel Independence:Each input channel operates independently,allowing simultaneous monitoring of two different pulse sources(e.g.,two encoders or a flow meter and a tachometer).

Multiple Operating Modes:Users can configure each channel for frequency measurement(Hz),period measurement(µs),or cumulative counting(totalizer),providing flexibility across diverse applications.

Seamless TwinCAT Integration:The module is automatically recognized in Beckhoff’s TwinCAT 2/3 software,where counter values can be easily accessed,scaled,and used in PLC logic without additional configuration.

Robust Industrial Design:Built to withstand harsh environments,the KL1712 features optical isolation,wide temperature tolerance,and resistance to electrical noise.

Compact and Scalable:As part of the KL-series,it fits into dense control cabinets and can be combined with other I/O modules(e.g.,KL2134 outputs)for complete system solutions.

Diagnostics and Status LEDs:Real-time LED indicators for each channel and system status simplify troubleshooting during commissioning and maintenance.

Application Field

The Beckhoff KL1712 is widely used in industries where precise speed,position,or quantity measurement is critical:

Packaging Machinery:Monitoring encoder pulses to ensure accurate cut-to-length,labeling,or filling operations.

Printing and Converting Lines:Measuring web speed and registration marks using high-frequency sensor inputs.

Plastics and Extrusion:Tracking screw rotation speed in extruders for process consistency.

Material Handling:Counting products on conveyors or monitoring motor RPM for synchronization.

Energy and Utilities:Measuring flow rates via pulse-output flow meters in water,gas,or oil systems.

Test Benches and R&D:Capturing high-speed sensor data for performance analysis and validation.

Renewable Energy:Monitoring turbine rotation or generator speed in wind or hydro systems.

Food and Beverage:Tracking bottle or can counts on filling lines and monitoring mixer speeds.

The Beckhoff KL1712 is also frequently used as a replacement or alternative to the Beckhoff EL1712 in systems where KL-series I/O is preferred for centralized cabinet mounting.

Related Products

Beckhoff EL1712:EtherCAT inline version for decentralized installations.

Beckhoff KL1104:Standard 4-channel 24VDC digital input terminal for general-purpose use.

Beckhoff KL2134:4-channel digital output module,often paired with KL1712 for complete I/O control.

Beckhoff KL3404:Analog input module for temperature or pressure signals,complementing pulse data.

Beckhoff CX5020/CX5140:Embedded PCs that serve as controllers for systems using KL1712.

Beckhoff TwinCAT 3:Automation software for programming,configuration,and data visualization.

Beckhoff KS2000:Configuration interface tool for diagnostics and firmware updates.

Beckhoff FC3103:PROFINET coupler for integrating KL-series into non-EtherCAT networks.

Installation and Maintenance

Pre-installation Preparation:

Mount the Beckhoff KL1712 securely on a DIN rail in a clean,dry control cabinet.

Ensure the 24 VDC power supply is stable and within tolerance.

Use shielded cables for high-frequency signal lines to minimize electromagnetic interference.

Verify that the connected sensors(e.g.,encoders,proximity switches)are PNP-type and compatible with 24 VDC.

In TwinCAT,confirm that the KL1712 is correctly identified in the I/O configuration and assign variables for counter values.

Maintenance Recommendations:

Regularly inspect terminal screws and spring clamps for tightness.

Monitor LED indicators to confirm proper signal reception and detect faults.

Check counter values in software to ensure they update correctly and reset any overflow conditions.

Avoid exposing the module to moisture,dust,or excessive heat.

Perform periodic system backups in TwinCAT to preserve configuration settings.

Product Guarantee

The Beckhoff KL1712 is guaranteed to meet Beckhoff Automation’s high standards for quality,performance,and reliability in industrial environments.Each unit is factory-tested for signal accuracy,counter functionality,and long-term stability.We offer a 12-month warranty against defects in materials and workmanship under normal operating conditions.The Beckhoff KL1712 is an original Beckhoff product,ensuring full compatibility with TwinCAT software and other components in the Beckhoff ecosystem.Our technical support team provides expert assistance for integration,configuration,and troubleshooting,helping you achieve optimal system performance and uptime.We are committed to delivering innovative,reliable automation solutions that enhance productivity and reduce operational risk.

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