KL3448

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The KL3448 analog input module features 8 inputs, a signal current range of 0 to 20 mA, a resolution of 12 bits, and an internal resistance of less than 85 Ω. Part of the KL Analog Input Modules series by Beckhoff, it offers high packing density and operates within a temperature range of -25 to +60°C.

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Product Description:

The Beckhoff KL3448 from KL Analog Input Modules is built for use in high-demand applications.

This unit contains eight analog input channels in one small package, which suits applications that need to monitor many current signals in restricted control cabinet areas. The module represents Beckhoff's method for building efficient hardware solutions that retain excellent execution results. A standard signal current in the range of 0 to 20 mA can be processed by each of the eight inputs while the internal resistance of the system stays below 85 ohms. The measurement system enables accurate sensor and actuator signal reading through its design that reduces input voltage drop. This module guarantees protection for signals measuring ±10 V common-mode voltage to increase operational stability when processing signals in noisy electrical conditions. Each analog input measurements occur within a 4-millisecond conversion period using 12-bit resolution to support dependable real-time signal processing functions for control and monitoring operations. The measurement accuracy reaches ±0.3% precision concerning the full-scale value.

The module includes surge voltage protection that raises its durability while preventing unfavorable overvoltage events through its 30 V DC capacity. Processing power for the KL3448 module originates from the Beckhoff K-bus, which delivers 20 mA through its power contacts to enhance terminal block system operational efficiency. The module creates an 8 x 16-bit data entry interface into the process image, together with optional 8 x 8-bit control/status entries, which simplifies integration with Beckhoff's TwinCAT automation software. Users can configure the module through the TwinCAT System Manager interface. The input module functions optimally within a -25°C to +60°C temperature range and provides compatibility with standard DIN rail (EN 60715). It can be purchased at Wake Industrial with a one-year warranty.

Bit Width In The Process Image
input: 8 x 16 bit data (8 x 8 bit control/status optional)
Common-mode Voltage
Max. ±10 V
Configuration Options
Selectable via TwinCAT System Manager
Conversion Time
~ 4 ms
Current Consumption Power Contacts
typ. 20 mA
Internal Resistance
< 85 Ω
Measurement Error/uncertainty
< ±0.3% (relative to full scale value)
Mounting Type
DIN rail mounting (EN 60715)
Number Of Inputs
8
Operating Temperature
-25…+60°C
Power Supply
via the K-bus
Resolution
12 bit
Signal Current
0…20 mA
Special Features
high packing density
Surge Voltage Resistance
30 V DC

Frequently Asked Questions about KL3448:

Q: What is the resolution and accuracy of the KL3448?

A: The KL3448 provides 12-bit resolution and offers measurement accuracy within ±0.3% of the full-scale value.

Q: How many channels does the KL3448 provide for analog input?

A: The KL3448 features 8 analog input channels, each capable of processing 0–20 mA current signals in a compact form factor.

Q: What is the signal protection capability of the KL3448?

A: The KL3448 includes ±10 V common-mode voltage protection and 30 V DC surge protection for increased durability in electrically noisy environments.

Q: How does the KL3448 handle data processing and system integration?

A: It integrates into the process image with 8 x 16-bit entries and optional 8 x 8-bit status/control bits, configured via TwinCAT System Manager.

Q: What are the operating conditions and installation options for the KL3448?

A: The module operates from -25°C to +60°C and is DIN rail mountable (EN 60715), making it suitable for compact and rugged industrial setups.


Internal Product Review

  • ‘‘The KL3448 from Beckhoff combines precision, speed, and space efficiency in a compact analog input terminal. With 8 channels and robust signal protection, it’s perfect for high-density current signal monitoring in industrial control cabinets.’’

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