Siemens

Siemens 6ES7157-0AF81-0XA0 SIMATIC DP Active Field Distributor

SKU 6ES7157-0AF81-0XA0

In stock
  • 12-month warranty
  • Free returns within 30 days

  • Manufacturer: Siemens

  • Product No.: 6ES7157-0AF81-0XA0

  • Country of origin:Germany

  • Product Type: CoMMunication Modules

  • Barcode: 85176200

  • Payment: T/T, Western Union

  • Weight: 700g

  • Dimensions: 5.10cm x 17.80cm x 12.70cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The 6ES7157-0AF81-0XA0 is a SIMATIC DP Active Field Distributor (AFD) specifically engineered for PROFIBUS PA process automation networks. This module facilitates the distribution of bus signals while providing integrated support for ring redundancy and automatic bus termination. Designed for deployment in demanding environments, the 6ES7157-0AF81-0XA0 features four short-circuit-proof spurs, which prevent individual device faults from compromising the integrity of the entire fieldbus segment. With an IP65 ingress protection rating and an expanded operating temperature range, this distributor ensures robust and reliable signal transmission in harsh industrial settings.

Features

  • Functionality: Active Field Distributor for PROFIBUS PA networks.
  • Redundancy: Supports ring redundancy for high-availability communication.
  • Termination: Integrated automatic bus termination.
  • Connectivity: Equipped with 4 short-circuit-proof spurs.
  • Environmental Protection: IP65 rating for dust and moisture resistance.
  • Operational Range: Designed for expanded temperature range applications.

Applications

  • Chemical and petrochemical processing plants.
  • Pharmaceutical manufacturing lines.
  • Oil and gas field instrumentation networks.
  • Water and wastewater treatment facility automation.
  • Large-scale distributed I/O process control systems.

Technical Specifications

Feature Specification
Manufacturer Siemens
Range SIMATIC S7
Subrange DP (Decentralized Peripherals)
Model 6ES7157-0AF81-0XA0
Product Type Active Field Distributor
Protection Class IP65
Spur Connections 4 (Short-circuit-proof)
Communication PROFIBUS PA
Dimensions 5.10 cm x 17.80 cm x 12.70 cm
Weight 0.70 kg
Origin Siemens

Installation Guidelines

  • Mounting: Ensure the unit is mounted in a location that minimizes exposure to direct physical impact while remaining accessible for wiring maintenance.
  • Ingress Protection: Verify that all cable glands and unused ports are correctly sealed to maintain the IP65 rating.
  • Grounding: Proper grounding of the fieldbus shield is essential to minimize electromagnetic interference (EMI) and maintain signal integrity.
  • Cable Routing: Maintain appropriate bending radii for PROFIBUS PA cables; avoid routing fieldbus cables in parallel with high-voltage power lines to prevent signal coupling.
  • Short-Circuit Protection: The spurs are inherently short-circuit-proof; however, always verify field device wiring for correct polarity and integrity before connecting to the AFD.

FAQ

What is the primary function of the 6ES7157-0AF81-0XA0?
It acts as an Active Field Distributor (AFD) for PROFIBUS PA networks, managing signal distribution, automatic bus termination, and ring redundancy.

How many devices can be connected to the spurs of this module?
The module provides 4 short-circuit-proof spurs for connecting field devices.

What level of environmental protection does this device offer?
It is rated IP65, providing protection against dust ingress and low-pressure water jets.

Does this module support redundancy?
Yes, it is designed to support ring redundancy to ensure communication reliability in the process automation network.

View all FAQs →

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  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern
Blue
Country of origin
Germany
Power source
DC Power

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