PLC | SIMATIC S7 Distributed I/O / PROFIBUS DP | Siemens | 6ES7158-0AD01-0XA0 6ES7 158-0AD01-0XA0 DP/DP coupler Coupling module

Product Description: Siemens 6ES7158-0AD01-0XA0

The Siemens 6ES7158-0AD01-0XA0 is a DP/DP Y-Link module designed for connecting a DP master system (such as an S7 CPU) to two independent DP slave networks. It allows seamless communication and data exchange between different PROFIBUS DP segments while ensuring electrical isolation between them. The Y-Link acts as a DP slave on the primary master side and as a DP master on both subordinate networks, offering high flexibility in plant expansions or network segmentation. It is particularly suited for migrating or coupling new ET 200 systems into existing installations.

Key Features

• Function: Acts as DP slave on the primary side and DP master on the secondary sides
• Network Compatibility: PROFIBUS DP (12 Mbps max)
• Electrical Isolation: Galvanic isolation between all interfaces
• Mounting: DIN rail mounting
• Configuration: Integrated into STEP 7 via hardware configuration
• Status LEDs: Diagnostics and communication status indication

Technical Specifications

• System Series: SIMATIC S7 / PROFIBUS DP
• Module Type: DP/DP Coupler (Y-Link)
• Primary Interface: DP Slave (connected to S7 CPU)
• Secondary Interfaces: 2 × DP Masters (to slave networks)
• Max. Transmission Rate: 12 Mbps
• Electrical Isolation: Yes (between all DP segments)
• Mounting Type: DIN rail
• Dimensions (W × H × D): 40 mm × 125 mm × 120 mm
• Operating Temperature Range: 0 °C to +60 °C
• Power Supply: 24 V DC
• Certifications: CE, cULus

Application Areas

• Segmentation of PROFIBUS networks for improved manageability
• Integration of new devices into legacy automation systems
• Migration projects using ET 200 systems on separate DP segments
• Reducing bus load by distributing slaves across two sub-networks

Advantages

• Enables independent operation of subordinate DP networks
• Electrical isolation improves network reliability and safety
• Supports flexible expansions and stepwise modernization
• Fully integrates into STEP 7 for simplified configuration and diagnostics