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SIEMENS 6ES7972-0DA00-0AA0 Active RS485 segment termination

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SIEMENS / SIMATIC DP

ACTIVE RS485 TERMINATION

Purpose-built SIMATIC hardware for a clearly defined automation task.

ARTICLE NUMBER

6ES7972-0DA00-0AA0

○

NETWORK

RS485 bus termination element

↔

APPLICATION

PROFIBUS and MPI network endpoints

■

NET WEIGHT

Approximately 0.105 kg

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Product Details

SIEMENS · 6ES7972-0DA00-0AA0

RS485
BUS END

ACTIVE NETWORK TERMINATION

SIEMENS
6ES7972-0DA00-0AA0

SIMATIC DP · PROFIBUS / MPI

Independently powered termination keeps the electrical end of an RS485 segment active even when the adjacent participant is disconnected.

24 V
INDEPENDENT

9.6 kbit/s to 12 Mbit/s
PROFIBUS/MPI data rates

20.4 to 28.8 V DC
Permitted supply range

Independent bus end
Termination remains powered

Confirm the complete configuration before ordering.
Send article number, installed system, quantity and destination for a focused quotation.

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TECHNICAL PROFILE

Electrical and Application Details

ITEM	VALUE	SELECTION CHECK
Network role	Active RS485 segment termination	Install at the physical end of the bus segment
Networks	PROFIBUS and MPI	Use with compatible RS485 bus cable
Transmission rate	9.6 kbit/s to 12 Mbit/s	Observe rate-dependent segment length
Supply	24 V DC; permitted 20.4 to 28.8 V DC	Keep termination energized independently
Benefit	Termination remains active when end nodes are disconnected	Supports maintenance without opening the bus end
Protection	IP20	Install inside a suitable enclosure
Lifecycle	Phase-out announced from October 2024	Confirm availability and project strategy
Identity	Active RS485 terminating element	Not a repeater and not a passive connector

SYSTEM RELATIONSHIP

Where 6ES7972-0DA00-0AA0 Fits

Functional position
An independently powered active RS485 terminating element for correctly closing PROFIBUS and MPI segments. Because termination remains powered separately from bus participants, end devices can be coupled or uncoupled without removing the electrical termination.

Family comparison
Compare this device with passive terminating connectors and RS485 repeaters by function. A passive connector depends on the attached station; a repeater regenerates and separates segments; 6ES7972-0DA00-0AA0 provides independently powered termination at a segment end.

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Communication
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Verification
Article-number and condition checks before shipment.

Availability
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Request Availability and Pricing

Sales Manager
Miya Zheng

sales@amikon.cn
Email product and quantity details

86-18020776792
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PURCHASING FAQ

Checks Before Ordering

01	Where should 6ES7972-0DA00-0AA0 be installed? Install it at the physical end of the PROFIBUS or MPI segment. Correct termination is required at both segment ends to limit signal reflections.
02	Why does 6ES7972-0DA00-0AA0 need 24 V DC power? Independent power keeps the terminating network active even when the adjacent participant is removed or switched off.
03	Can 6ES7972-0DA00-0AA0 replace a PROFIBUS repeater? No. It terminates a segment but does not regenerate signals, isolate segments or increase the permitted node count.
04	Does 6ES7972-0DA00-0AA0 support 12 Mbit/s? Yes, the active terminator is intended for PROFIBUS/MPI rates from 9.6 kbit/s through 12 Mbit/s when the complete segment follows the applicable cable rules.
05	What matters when sourcing 6ES7972-0DA00-0AA0 during phase-out? Confirm the exact article number, terminal and housing condition, 24 V supply arrangement, test status, quantity and long-term maintenance plan.

Return Support

Keep the item in original condition and state the reason. Processing begins after receipt and inspection.

Return-related shipping costs remain the buyer's responsibility.

INDUSTRIAL AUTOMATION RANGE

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