Key Features
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PROFIBUS-DP Slave Interface – Built-in SINEC L2-DP slave interface for connection to a PROFIBUS-DP master controller, enabling distributed I/O architecture
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All-in-One Compact Design – Integrates CPU, 24V DC power supply, and I/O into a single housing, reducing cabinet space and eliminating the need for a separate rack and backplane
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Comprehensive Onboard I/O – 16 digital inputs (24V DC sinking, including 4 interrupt and 2 counter inputs), 16 digital outputs (24V DC, 0.5A each), 8 analog inputs (0–10V DC), and 1 analog output (0–10V DC)
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16 KB User Memory – 8 KB available for user program instructions
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Expandable Architecture – Supports expansion with up to 32 peripheral modules from the S5-100U series
Technical Parameters
Core Advantages
1. Seamless PROFIBUS-DP Slave Integration
The -8MD03 variant is specifically engineered for distributed automation architectures. Its built-in SINEC L2-DP slave interface allows the S5-95U to be configured as a PROFIBUS-DP slave under a master controller (such as an S7-300/400, a PC with CP5613, or another S5-95U acting as master) . This makes it ideal for expanding existing PROFIBUS networks with compact, self-contained control nodes that handle local I/O while reporting back to the central master.
2. Comprehensive Onboard I/O in a Compact Package
The 6ES5095-8MD03 provides a versatile I/O mix directly on the CPU: 16 digital inputs (including 4 interrupt and 2 counter inputs), 16 digital outputs (0.5A sourcing), 8 analog inputs, and 1 analog output . This onboard capability handles many local control tasks without requiring additional expansion modules, reducing system cost and complexity.
3. Expandable for Larger Applications
Despite its compact size, the S5-95U can be expanded with up to 32 peripheral modules from the S5-100U series, including digital I/O, analog I/O, and special function modules . This scalability makes it suitable for a wide range of application sizes, from simple standalone control to more complex distributed systems.
4. Proven Legacy Platform with Established Integration Paths
The S5-95U with DP slave interface has a well-documented integration path with modern systems. Engineers have successfully integrated the S5-95U as a DP slave in STEP 7 projects using a GSD file, enabling communication with modern PROFIBUS masters. This allows legacy S5 equipment to remain productive within modern automation architectures .
5. Critical for Legacy System Maintenance
Many industrial facilities still rely on S5-95U compact controllers in production-critical applications. The 6ES5095-8MD03 is an essential spare for maintaining these systems, allowing operators to replace failed units without undertaking a complete system migration .
Applications
The 6ES5095-8MD03 is deployed across a range of industrial automation applications:
Recommended Models & Related Products
Compatibility Note: If the onboard DP port is not used, the 6ES5095-8MD03 (DP Slave) can be replaced with a 6ES5095-8ME02 (DP Master) and vice versa. However, if the onboard DP port is used, direct replacement is not possible without reconfiguration or adding a DP/DP coupler .
What's Included
Why Buy From Us?
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In Stock – Ready to ship immediately
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New Original / Refurbished – Genuine Siemens factory condition or professionally refurbished
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Warranty Included – 12-month warranty for purchase confidence
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Fast Shipping – Expedited shipping options available
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Technical Support – Legacy system compatibility assistance available
Frequently Asked Questions (FAQ)
Q1: What is the Siemens 6ES5095-8MD03?
It is a compact central processing unit from the SIMATIC S5-95U series, featuring a built-in PROFIBUS-DP Slave interface for integration into distributed automation networks .
Q2: What distinguishes the -8MD03 from other S5-95U variants?
The -8MD03 is the PROFIBUS-DP Slave variant. It provides a DP slave port for connection to a master controller. Other variants offer dual AS511 ports (MC), FDL capability (MB), or DP master functionality (ME) .
Q3: What I/O does this module provide?
It provides 16 digital inputs (24V DC, including 4 interrupt and 2 counter inputs), 16 digital outputs (24V DC, 0.5A each), 8 analog inputs (0–10V), and 1 analog output .
Q4: How much program memory does the 6ES5095-8MD03 have?
It has 16 KB of user memory, with 8 KB available for user program instructions .
Q5: Can I replace a 6ES5095-8MD02 with this model?
Yes. The 6ES5095-8MD03 is the direct successor to the 6ES5095-8MD02 and serves as a compatible replacement for the same DP slave applications .
Q6: Can I use this module as a PROFIBUS-DP master?
No. The -8MD03 is a DP Slave only. For DP master functionality, the 6ES5095-8ME02 is required .
Q7: How do I integrate the 6ES5095-8MD03 into a modern STEP 7 project?
The S5-95U DP slave can be integrated into STEP 7 using a GSD file. Parameters are set in STEP 5 on the S5-95U side, and the GSD file is used on the master side .
Q8: Is this a genuine Siemens product?
Yes. This is a genuine Siemens module manufactured in Germany . Depending on availability, units may be new original or professionally refurbished.
Q9: Is the SIMATIC S5 series still in production?
No. The SIMATIC S5 series has been discontinued by Siemens and replaced by the S7 series. The S5-95U is available only through third-party suppliers and remaining stock .
Q10: What should I verify before ordering?
Always verify the exact part number (6ES5095-8MD03), confirm your system requirements (DP slave functionality), and check whether your application requires expansion modules or specific firmware features.
