KS3458

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The KS3458 digital input module offers 8 inputs, a resolution of 12 bits, a signal current range of 4 to 20 mA, and operates with a power supply via the K-bus. Part of the KS Digital Input Modules series by Beckhoff, it features IP20 protection, surge voltage resistance up to 30 V DC.

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Product Description:

The Beckhoff KS3458 functions as a high-precision digital input module in industrial automation applications.

The module enables 8 analog channels that handle 4–20 mA signal currents to connect effectively with industrial sensors as well as transmitters found in process control, together with energy monitoring and equipment diagnostic applications. The Beckhoff K-bus system drives this module's operations, which consumes 105 mA of current and eliminates the need for an additional power supply to operate its input channels. Each input circuit of the KS3458 offers internal resistance lower than 85 ohms, which helps maintain precise current detection by minimizing signal attenuation. The device includes a surge voltage resistance capability of 30 V DC that guards against electrical damage in rigorous conditions. The module provides accurate, high-resolution measurements at 12-bit resolution, which ensures precise control over analog signal inputs. The device makes measurement conversions in 4 milliseconds, thus supporting time-sensitive systems requiring continuous real-time data updates. The device maintains small measurement uncertainty since its typical error remains below ±0.3% relative to full-scale reading, which ensures dependable signal quality.

The module arranges input data through its process image into 8 channels as 16-bit values while providing optional 8-bit control and status data flexibility in automation applications. Powerful EMC resistance standards from EN 61000-6-2 and EN 61000-6-4 guarantee the KS3458 will function properly in industrial environments with electrical noise. The physically small device upholds IP20 specifications while functioning within temperature conditions between 0 to 55°C and accepting safe storage between -25 to +85°C. The product meets the specifications of EN 60068-2-6 and EN 60068-2-27 to deter damage from vibrations and shocks. It can be purchased at Wake Industrial with a one-year warranty.

Bit Width In Process Image
input: 8 x 16 bit data (8 x 8 bit control/status optional)
Conversion Time
approximately 4 ms
Current Consumption (k-bus)
typ. 105 mA
Emc Immunity/emission
conforms to EN 61000-6-2/EN 61000-6-4
Internal Resistance
< 85 Ω
Measurement Error/uncertainty
< ±0.3% (relative to full scale value)
Number Of Inputs
8
Operating Temperature
0…55°C
Power Supply
via the K-bus
Protection Rating
IP20
Resolution
12 bit
Signal Current
4…20 mA
Storage Temperature
-25…+85°C
Surge Voltage Resistance
30 V DC
Vibration/shock Resistance
conforms to EN 60068-2-6/EN 60068-2-27

Frequently Asked Questions about KS3458:

Q: What type of input signals does the KS3458 support?

A: The KS3458 supports 4–20 mA analog current inputs across 8 channels, making it suitable for sensors and transmitters in process automation.

Q: What is the resolution and conversion time of the KS3458?

A: The KS3458 operates with a 12-bit resolution and performs analog-to-digital conversions in just 4 milliseconds, enabling real-time signal updates.

Q: Does the KS3458 require an external power supply for its input channels?

A: No, the KS3458 draws power from the Beckhoff K-bus system and consumes about 105 mA, eliminating the need for additional input channel power.

Q: What is the typical measurement accuracy of the KS3458?

A: The KS3458 offers a typical error of less than ±0.3% of full-scale, ensuring accurate and consistent signal acquisition in industrial environments.

Q: What environmental and EMC standards does the KS3458 comply with?

A: The KS3458 meets EN 60068-2-6 and EN 60068-2-27 for vibration and shock resistance, and complies with EN 61000-6-2 and EN 61000-6-4 for EMC immunity and emissions.


Internal Product Review

  • ‘‘The KS3458 from Beckhoff is a compact, high-precision module tailored for industrial current signal monitoring. Its fast conversion speed and excellent signal accuracy make it ideal for data-driven process control and diagnostics.’’

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