• Siemens 6ES7972-0AA01-0XA0
  • Siemens 6ES7972-0AA01-0XA0
  • Siemens 6ES7972-0AA01-0XA0
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Siemens 6ES7972-0AA01-0XA0 SIMATIC DP RS485 Repeater

Siemens 6ES7972-0AA01-0XA0 SIMATIC DP RS485 Repeater

The Siemens 6ES7972-0AA01-0XA0 is a SIMATIC DP RS485 repeater designed for the connection of PROFIBUS and MPI bus systems. This module serves as an active network component that regenerates signals...

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SKU: 6ES7972-0AA01-0XA0
Vendor: Siemens
Category: RS485 Repeater
Related Series:

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The Siemens 6ES7972-0AA01-0XA0 is a SIMATIC DP RS485 repeater designed for the connection of PROFIBUS and MPI bus systems. This module serves as an active network component that regenerates signals to maintain data integrity over extended cable distances and provides electrical isolation between bus segments to mitigate ground loop interference.

Features

  • RS485 Repeater for PROFIBUS and MPI networks
  • Supports up to 31 nodes per segment
  • Maximum transmission rate of 12 Mbit/s (supports 9.6 kbit/s to 12 Mbit/s)
  • Electrical isolation between bus segments
  • Transparent operation: No configuration or GSD files required
  • Compact design for DIN rail mounting

Applications

  • Industrial machine control (packaging, conveyors, assembly lines)
  • Building automation (HVAC and lighting control)
  • Water and wastewater management (pump stations and valve control)
  • Material handling systems
  • Remote HMI monitoring for unmanned plant sites

Technical Specifications

Model 6ES7972-0AA01-0XA0
Supply Voltage 24 V DC
Voltage Range 20.4 V to 28.8 V DC
Max Current Consumption 200 mA
Transmission Rate 9.6 kbit/s to 12 Mbit/s
Max Nodes per Segment 31
Degree of Protection IP20
Max Relative Humidity 95% at 25 degC

Installation Guidelines

  • Mounting: Designed for snap-on installation onto a standard 35 mm top-hat DIN rail.
  • Orientation: Can be mounted horizontally or vertically; ensure ambient temperature does not exceed 60 degC for horizontal or 40 degC for vertical configurations.
  • Enclosure: Install within an approved, protective industrial control cabinet to maintain IP20 rating and safety standards.
  • Wiring: Connect bus cables to the provided terminal blocks; ensure proper grounding practices to maximize the effectiveness of the electrical isolation.
  • Safety: Always disconnect power before installing or removing the module from the bus system.

FAQ

What is the primary function of the 6ES7972-0AA01-0XA0?

It is used to amplify data signals and connect segment lines within PROFIBUS and MPI networks, allowing for extended network distances and increased node capacity.

Does this repeater require software configuration?

No, this is a hardware-based, transparent device that does not require configuration in STEP 7 or TIA Portal.

Does this module provide network diagnostics?

No, this model does not include built-in diagnostic features. For advanced topology mapping and fault location, a dedicated Diagnostics Repeater is required.

What do the LED indicators signify?

Flickering or blinking LEDs indicate low message traffic on the bus, while solidly lit LEDs indicate a high volume of data transmission.