Product Name: SIMATIC NET PROFIBUS OLM/G12-1300 V4.0
Brand Name: Siemens
Model Number: 6GK1503-3CC00
Place of Origin: Germany
Warranty: 12 Months
Whatsapp: +86 18020776782
Email: [email protected]
Siemens 6GK1503-3CC00 is an optical link module for PROFIBUS networks with one electrical RS485 channel and two 1310 nm single-mode fiber channels.
It supports long-distance optical PROFIBUS segments, diagnostic monitoring and redundant ring structures. Verify fiber type, optical budget, connector format, baud rate and switch settings before installation.
| CONTACT | Jim Pei | [email protected] | +86 180 2077 6782 |
The OLM converts PROFIBUS electrical signals to optical signals and extends the network over single-mode fiber while maintaining industrial diagnostics.
The module regenerates PROFIBUS telegrams between electrical and optical network sections and can supervise link quality and redundancy.
SupplyPLCs supplies industrial automation and control components for maintenance, replacement and project support.
Q1. How can I confirm that 6GK1503-3CC00 matches the fiber already installed in my plant?
Answer: Verify that the cable is 1310 nm single-mode fiber, check the BFOC connector type, measure or calculate total link attenuation and confirm that distance and losses remain within the 15 km and 8 dB limits.
Q2. What should I check when an optical channel on 6GK1503-3CC00 shows a link fault?
Answer: Check transmit and receive fiber polarity, clean and reseat the BFOC connectors, inspect bends and splice losses, and compare the diagnostic LEDs and test-port value with a working channel. Do not look into an active fiber connector.
Q3. How should I troubleshoot a redundant ring that does not recover through 6GK1503-3CC00?
Answer: Confirm that every OLM in the ring supports the same ring mode, baud rate and optical characteristics. Check switch settings, channel pairing and fiber direction, then open one segment at a time under an approved maintenance procedure to locate the fault.
Q4. What should I inspect when the RS485 segment connected to 6GK1503-3CC00 is unstable?
Answer: Verify PROFIBUS cable type, shielding, connector seating, station addresses, segment length and termination at the two electrical ends. Confirm that the detected baud rate matches the PLC configuration before changing OLM settings.
Q5. How can I use the signaling contact on 6GK1503-3CC00 for preventive maintenance?
Answer: Wire the isolated signaling contact to an approved diagnostic input and monitor it together with the front LEDs. Investigate recurring link-quality alarms, supply dips or fiber contamination before a communication outage occurs.
Q6. Can a related PROFIBUS OLM replace 6GK1503-3CC00 without network changes?
Answer: Only if wavelength, fiber type, connector format, optical budget, supported baud rates, ring mode, power wiring and switch configuration all match. A multimode or different-wavelength OLM is not a direct substitute for this single-mode model.
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