New Original Siemens 6GK1503-3CB00 PROFIBUS Optical Link Module
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Product Description for Siemens 6GK1503‑3CB00 PROFIBUS Optical Link Module
1. Product Overview
6GK1503‑3CB00 is a new‑original Siemens Optical Link Module (OLM) for PROFIBUS‑DP field‑bus networks. It converts electrical RS‑485 PROFIBUS‑DP signals into optical signals and vice versa. This device serves as a signal converter between copper‑cable‑based PROFIBUS segments and fiber‑optic cables. It eliminates ground‑loop interference and extends communication distances compared with conventional copper PROFIBUS‑DP wires. This OLM supports multimode optical fiber and works with S7‑300, S7‑400, S7‑1500 PLC, ET200‑series distributed I/O modules and PROFIBUS‑DP‑compliant field‑devices. It builds reliable PROFIBUS‑DP communication for high‑noise industrial environments such as metallurgical workshops, power plants and heavy‑machinery factories where electromagnetic interference is serious. It is mounted on standard DIN rails inside control cabinets and complies with SIMATIC network configuration rules.
2. Main Functions
- Signal Conversion
Transform RS‑485 electrical signals from PROFIBUS‑DP copper cables into optical signals for fiber‑optic transmission and convert optical signals back into RS‑485 signals on the receiving side. It fully complies with PROFIBUS‑DP protocol without changing original bus data content.
- Long‑Distance Transmission
It extends PROFIBUS‑DP communication range. For multimode fiber, the maximum transmission distance can reach 3000 meters, far longer than 1000‑meter limit of copper‑based PROFIBUS‑DP cable at 12 Mbit/s baud‑rate.
- Isolate Electromagnetic Interference
Optical fiber transmission achieves complete galvanic isolation between different PROFIBUS‑DP segments, effectively avoiding ground‑loop currents and interference from servo‑drives, frequency converters and high‑power motors.
- Network Topology Selection
Support point‑to‑point and linear topologies. Multiple OLM units can be cascaded to construct large‑scale PROFIBUS‑DP optical‑fiber networks. Built‑in 120‑ohm terminating resistor can be activated for bus endpoints.
- Status Diagnosis
LED indicators display power status, optical link state and PROFIBUS‑DP bus faults. Fault information can be captured via STEP‑7 or TIA Portal for troubleshooting.
- Data‑rate Adaptation
Automatically adapts to PROFIBUS‑DP baud‑rates ranging from 9.6 kbit/s up to 12 Mbit/s without manual parameter setting.
- Expansion of Bus Stations
Each electrical port can connect multiple PROFIBUS‑DP nodes, helping users expand total quantity of DP‑slave devices across different workshop areas.
3. Technical Characteristics
表格
| Item | Specific Parameters |
|---|---|
| Order Number | 6GK1503‑3CB00 |
| Product Name | PROFIBUS OLM/G12 Optical Link Module with two multimode fiber ports |
| Electrical Interface | 1‑channel RS‑485 PROFIBUS‑DP (9‑pin D‑Sub connector) |
| Optical Interface | Two ports for multimode fiber (BFOC connectors) |
| Supported Fiber Type | 62.5/125 μm multimode optical fiber |
| Max Transmission Distance | 3000 m at 12 Mbit/s |
| Supported Baud Rate | 9.6 kbit/s to 12 Mbit/s auto‑adaptation |
| Terminating Resistor | Built‑in 120 Ω resistor with switch‑on or switch‑off option |
| Supply Voltage | DC 24 V |
| Operating Voltage Range | DC19.2 V‑28.8 V |
| Power Consumption | Approx 3.6 W |
| Operating Ambient Temperature | 0 ℃ to +60 ℃ |
| Storage and Transportation Temperature | ‑40 ℃ ~ +85 ℃ |
| Protection Class | IP20 (for cabinet‑installation only) |
| Mounting Method | DIN‑rail mounting or screw‑fixed installation |
| EMC Standard | EN61000‑6‑2 and EN61000‑6‑3 |
| Housing Material | UL94‑V0 flame‑retardant plastic |
| Certifications | CE, UL and RoHS approved; Made in Germany |
4. Product Dimensions and Weight
表格
| Physical Parameter | Actual Value |
|---|---|
| Module Width | 45 mm |
| Module Height | 110 mm |
| Module Depth | 75 mm |
| Net Weight of single OLM | Approximately 170 g |
| Gross Weight with original factory packing | Around 245 g |
5. Application Scope
This optical link module is widely used for PROFIBUS‑DP networks in harsh industrial‑field environments, such as thermal‑power plants, petro‑chemical factories, automobile welding lines, mining equipment, cement‑production lines and ship‑automation systems. It stabilizes PROFIBUS‑DP communication where heavy electromagnetic interference exists.
6. 10 Siemens optical‑link modules with similar‑function for PROFIBUS‑DP
- 6GK1503‑2CB00: Single‑fiber‑port OLM for point‑to‑point PROFIBUS‑DP connection for short‑range fiber‑optic communication.
- 6GK1503‑4CB00: Four‑multimode‑port OLM, designed for star‑type PROFIBUS‑DP optical‑fiber network topology.
- 6GK1503‑3CC00: Single‑mode version of OLM with maximum transmission distance of 15 km for long‑distance workshop connection.
- 6GK1503‑3CD00: SIPLUS OLM with conformal coating; suitable for high‑humidity and corrosive industrial‑site conditions.
- 6GK1503‑3CE00: Extended‑diagnosis OLM, which sends detailed optical‑power‑loss data to PLC via PROFIBUS‑DP.
- 6GK1503‑3CF00: Low‑temperature‑adapted OLM which works stably from ‑25℃ to +60℃ for cold‑climate outdoor control cabinets.
- 6GK1503‑3CG00: Compact‑size OLM with reduced width for installation in narrow‑space cabinets.
- 6GK1504‑3AA00: Rail‑mounted OLM with LC‑type fiber connectors instead of BFOC connectors for small‑sized fiber‑cable wiring.
- 6GK1503‑3CH00: Redundant‑link OLM with two‑channel optical path for hot‑standby PROFIBUS‑DP networks.
- 6GK1503‑0CB00: Older‑generation firmware variant of 6GK1503‑3CB00 for maintenance replacement in legacy projects.
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Sobre nosotros
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
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We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
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We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
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