Product details
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SIEMENS · PRODUCT DETAILS

6ES7157-0AF81-0XA0

SIMATIC DP AFD Active Field Distributor

PROFIBUS PARing RedundancyIP65

PRODUCT SNAPSHOT

An active field distributor for PROFIBUS PA ring networks, providing automatic bus termination and four short-circuit-proof spur connections for field devices.

Version 2 uses screw-type terminal technology and IP65 protection. It supports redundant ring structures and extended-temperature process automation installations.

DIRECT CONTACT

☎ +86 17359287459 ✉ sales9@apterpower.com

DIAGNOSTICS · PROTECTION · COMMISSIONING

Reliable operation with structured installation guidance

◆ Diagnostic protection

Automatic bus termination supports continued ring operation after a segment interruption.
Four short-circuit-proof spurs isolate individual field connection faults.
The IP65 enclosure protects the field distributor in demanding plant environments.
Version-specific status and fieldbus checks support systematic fault localization.

◆ Installation & upgrade

Install the distributor in a PROFIBUS PA ring according to the Siemens DP/PA bus-coupler manual.
Use the specified screw-type terminals and preserve shield and grounding continuity.
Check spur polarity, cable routing and short-circuit protection before energizing the segment.
When replacing it with an AFD4, allow for the successor device’s larger dimensions.

OFFICIAL TECHNICAL DATA

Product type
Active Field Distributor AFD

Fieldbus
PROFIBUS PA

Topology
Redundant ring

Spur connections
4 short-circuit-proof

Bus termination
Automatic

Enclosure
IP65

Terminal technology
Screw-type

Product version
Version 2

Technical content is based on Siemens documentation for this exact order code. Installation and validation must follow the applicable Siemens manuals.

BRAND STRENGTH · APPLICATION MAP

Industrial integration and application guidance

Siemens brand characteristics

Integrated engineering across controllers, distributed I/O, communication and safety systems.
Documented diagnostics support structured commissioning, maintenance and replacement work.
Long lifecycle support and defined migration paths serve established automation platforms.
Broad industrial portfolio supports machine, process and infrastructure applications.

Application fields

Redundant PROFIBUS PA field networks in process plants.
Chemical and pharmaceutical field-instrument distribution.
Water-treatment and utility automation installations.
Maintenance and migration of legacy SIMATIC DP PA-ring systems.

RECOMMENDED MODELS

SIEMENS

6ES7326-1RF01-0AB0

6ES7326-2BF10-0AB0

6ES7326-2BF41-0AB0

6ES7136-6BA00-0CA0

6ES7136-6DB00-0CA0

6ES7136-6DC00-0CA0

6ES7136-6RA00-0BF0

6ES7136-6PA00-0BC0

6ES7138-4FA05-0AB0

6ES7138-4FB04-0AB0

6ES7138-6BA01-0BA0

6ES7138-6CB00-0CA0

6ES7138-6DB00-0BB1

6ES7195-7HD10-0XA0

6ES7153-2BA10-0XB0

6ES7153-4BA00-0XB0

6ES7317-6FF04-0AB0

6ES7416-5FS07-0AB0

6ES7532-5HD00-0AB0

6ES7231-5PF32-0XB0

BECKHOFF

EL1904

EL2904

EL6910

EL6930

EL6900

EL1918

EL2911

EP1908-0002

EP1957-0022

EP2338-0002

EK1960

EK1914

KL1904

KL2904

KL6904

TwinSAFE SC

AX5805

AX5806

CX9020-0111

CX5130-0125

QUOTE · SERVICE & POLICY

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Request a quotation

Send the exact order code, required quantity and delivery destination. We confirm revision, condition, availability and lead time before dispatch.

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