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

Product parameters

Manufacturer: Siemens

Model: 6ES7972-0AA01-0XA0 (SIMATIC DP RS485 Repeater)

Type: Communication Module (RS485 Repeater)

Communication interface: 2 PROFIBUS DP bus interfaces (9-pin D-Sub or terminal block)

Supports PROFIBUS/MPI bus systems

Data transmission rate: 9.6 kbit/s to 12 Mbit/s

Maximum number of nodes: 31

Power supply requirements: 24 VDC (allowable range: 20.4 VDC to 28.8 VDC), input current: 200 mA (no load); 230 mA (PG/OP socket load 5 V/90 mA); 300 mA (PG/OP socket load 24 V/90 mA)

Compatibility: Fully compatible with SIMATIC S7-300/S7-400 PLC systems, PROFIBUS DP and MPI networks; "RoHS compliance

Others: Product code 84733020; Origin: Germany Discontinued (2012), supports STEP 7 software configuration; Diagnostic LED indication

Size module form: Compact DIN rail mounting module

Function

Signal regeneration: Regenerate RS485 signals, support bus segment expansion, up to 31 node connections, increase network distance and node capacity

Isolation support: Provides electrical isolation (1 kV) to prevent ground loops and interference, ensuring stable communication

Transmission rate: Supports high-speed data transmission from 9.6 kbit/s to 12 Mbit/s, suitable for real-time industrial applications

Diagnostic function: Built-in LED indicates network status, power supply and faults, supports hot plugging and online monitoring

Configuration flexibility: Bus parameters can be configured via DIP switches or software, making it easy to integrate into the PROFIBUS topology

Reliability assurance: Industrial-grade design, supporting continuous operation and fault isolation

Application scenarios

Industrial automation: SIMATIC PLC systems for manufacturing, petrochemical and power industries, achieving PROFIBUS/MPI bus expansion and distributed I/O control

Process control: In factory automation and production lines, it provides signal regeneration between bus segments, supports remote device connection and real-time data exchange

Distributed network: Suitable for S7-300/400 expansion, supporting multi-node deployment and high-reliability scenarios such as sensor and actuator networks

System integration: Integrated into medium and large-scale industrial projects for network diagnosis, data collection and trend analysis, suitable for process industries and machine manufacturing (Note: Discontinued model, it is recommended to use the successor product)

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