6GK1503-3CB00 SIEMENS PROFIBUS OLM/G12 Optical Link Module

Description

6GK1503-3CB00 SIEMENS PROFIBUS OLM/G12 Optical Link Module

Product Dimensions：

Product Description (Detailed Explanation)

The PROFIBUS OLM/G12 acts as a bridge between copper and fiber optic media. It allows for the creation of optical PROFIBUS networks in various topologies, including line, star, and redundant ring structures.

• Interface Configuration: It features one RS-485 interface (9-pin D-sub) for copper connection and two optical interfaces (BFOC sockets) for connecting to two separate fiber optic glass cables.

• Signaling: It supports all PROFIBUS data transfer rates from $9.6\ kbps$ to $12\ Mbps$ with automatic rate detection.

• System Integrity: The module includes a signaling contact and measurement outputs to monitor the quality of the optical link, providing early warning for maintenance.

Product Parameters (Technical Specifications)

Product Advantages (Key Benefits)

• Immunity to Interference: Using fiber optics provides total immunity to Electromagnetic Interference (EMI) and lightning strikes, making it ideal for high-voltage environments or long outdoor runs.

• High Availability: Supports Redundant Ring topologies. If one fiber optic cable is damaged, the module reroutes communication through the other path in milliseconds, ensuring no loss of data.

• Distance Extension: Overcomes the distance limitations of standard RS-485 copper cables (which are limited to $100\ m$ at high speeds), extending the network up to 3 kilometers.

• Diagnosis without Interruption: The integrated measurement terminals allow technicians to check the optical signal strength using a voltmeter while the system is running.

• Galvanic Isolation: Provides complete electrical isolation between different segments of the plant, preventing ground loops.

Precautions (Important Notes)

• Bending Radius: Never exceed the minimum bending radius of the fiber optic cables during installation, as this can cause permanent signal loss or physical breakage of the glass core.

• Cleanliness: Always use protective caps on unused optical ports. Even microscopic dust on the BFOC connectors can cause significant signal attenuation.

• Segment Termination: The RS-485 copper segment connected to the OLM must be correctly terminated at both ends according to PROFIBUS standards.

• Redundancy Switch: Ensure the “Redundancy” DIP switch on the module is correctly set to match the actual network topology (Line vs. Ring).

Product Applications (Typical Use Cases)

The 6GK1503-3CB00 is essential in large-scale or high-risk industrial environments:

• Long-Distance Networking: Connecting PLC stations in different buildings or across large manufacturing plants.

• High EMI Environments: Use in power plants, substations, or near large frequency converters where electrical noise is extreme.

• Oil & Gas / Chemical Plants: Safe transmission of data through hazardous areas where electrical sparks from copper cables must be avoided.

• Water/Wastewater Treatment: Connecting remote pumping stations over long distances where copper cabling would be susceptible to lightning strikes.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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