Features:
- The OLM/G12 converts PROFIBUS traffic between one electrical path and two optical paths.
- Automatic transfer-rate recognition covers the supported PROFIBUS speeds without a separate rate setting.
- Front indicators, a relay contact and optical measuring points expose communication and link condition.
Two transmitter-receiver pairs let the optical side continue traffic in both directions while the Sub-D connector anchors the copper segment.
The same port arrangement can be wired for a linear fiber run, a star branch or the two directions of a redundant optical ring.
Switch settings define operating behavior, while the signal contact provides a separate path for reporting detected module or link conditions.
The Siemens 6GK1502-3CB10 SIMATIC NET PROFIBUS OLM/G12 may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6GK1502-3CB10 SIMATIC NET PROFIBUS OLM/G12 Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Electrical-to-optical flow
- Copper Entry: PROFIBUS frames reach 6GK1502-3CB10 through the nine-pin RS485 connector.
- Optical Transmission: The module regenerates the electrical traffic for transmission on the selected fiber direction.
- Return Path: Received optical frames are converted back to the electrical PROFIBUS signal level.
- Segment Separation: Conversion keeps the copper and glass-fiber media on distinct physical interfaces.
Using the two optical channels
- Line Continuation: One channel can receive the optical segment while the other continues it to the next OLM.
- Star Branch: Multiple OLM paths can meet through a star arrangement built from the documented optical connections.
- Ring Directions: The two channels provide the opposing fiber routes required by a redundant optical ring.
- Channel Pairing: Each optical channel retains separate transmit and receive sockets for the two fiber strands.
Reading module and link condition
- Front LEDs: Visual indicators separate power, system and channel states during commissioning.
- Signal Contact: The relay output gives an external circuit a discrete indication of selected fault conditions.
- Measurement Points: Optical measuring outputs support evaluation of the received signal level without opening the fiber route.
- Channel Isolation: The two optical paths can be checked independently when locating a disturbed segment.
Mechanical and configuration boundaries
- Mounting Choice: 6GK1502-3CB10 can be fixed to a 35 mm rail or directly to a mounting plate.
- Power Entry: The 24 V DC supply terminates separately from the PROFIBUS signal connectors.
- Switch Bank: Operating switches define the mode assigned to the electrical and optical channels.
- Fiber Handling: Transmit and receive fibers must stay matched to the corresponding BFOC sockets at each link end.