With more than 30.000 high-quality spare parts, they can be sold immediately. Our large inventory allows us to quickly meet customer needs, thereby reducing downtime and protecting production schedules. Our timely delivery time provides you with security and save money.
We provide 1 year warranty on every product we sell.
Service means taking a customer problem and making it your own challenge. Years of experience and listening skills enable us to think and act quickly and accordingly. You have a problem? – We have the solution!
Apter Power is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
The Sales Team at Apter Power is constantly scanning the web to ensure we are offering the lowest prices possible.
However, if you think we can do better, feel free to make an offer on any of our products.
We pride ourselves on saving you money! Here is how to make an offer.
Only spare parts that you are seriously considering purchasing. Once your bid is accepted, a sales order will be generated and an invoice will be created.
If you have any questions about our quotes, please feel free to contact us. We will be happy to help you further.
If you receive a lower price than us, please do not hesitate to contact us. We allow you to quickly obtain the same part at a very low cost. Our extensive knowledge of industrial automation parts means that we can provide you with the best value and innovation. We ensure your satisfaction at all times.
The 6ES7216-2AD23-0XB8 is a SIMATIC S7-200 CN CPU 226 series programmable logic controller from Siemens' classic micro PLC series. It is one of the most powerful controllers in the entire S7-200 family, boasting the highest number of integrated I/O points. The "CN" suffix indicates that this version was specifically manufactured for the Chinese and Asia-Pacific markets.
Microsecond Seamless Switchover
100% Hardware-Level Protocol Transparency
Three-Way Electrical Isolation & Signal Reshaping
The three RS 485 interfaces of the module support all transmission rates specified in IEC 61158-2 for the PROFIBUS from 9.6 kbit/s to 12 Mbit/s. The module has repeater functionality, i.e., it regener ates the signal shape and the amplitude of received data. RLM02 monitors all three lines A, B and M for activity and error states. Detected errors are signalled by LEDs (light emitting diodes) on the front panel. The potential-free alarm contact activated in parallel to this can be polled for diagnostic purposes by the process control system PCS or by a programmable logic control PLC. The three serial RS 485 interfaces are potential-free rela tive to each other and to the power supply. This is a functional electrical isolation. The first data coming in over line A or line B with a correct telegram start are routed to terminal M. With simultaneity, either line A or line B is selected at random. Testing and selection is always based on the first character. In the case of a telegram start with error on A, the control logic switches to the re dundant line B. The same procedure applies vice versa for line B.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
ABB RLM02 3BSE091723R1 PROFIBUS Redundancy Link Module Manuals, Datasheets, Drivers, 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.
Metallurgy & Steel
Responsible for communication link protection of blast furnace charging systems, top high-pressure water pumps, and fan drives, resisting severe onsite electromagnetic interference.
Pulp & Paper
Implements uninterrupted bus backup for single-interface multi-drive modules within the sectional multi-motor synchronous speed regulation networks of high-speed paper machines.
Oil & Gas
Deployed in unmanned pumping stations and valve rooms along pipelines to supply redundant backup communication for single-channel PROFIBUS pressure regulating valves during long-distance transit.
Thermal Power
Used to link boiler main control systems with critical single-interface electric actuators and feedwater pump drives, preventing boiler trips caused by bus line breaks.
Pharmaceutical Industry
Provisions dual-line fault tolerance for environmental monitoring smart instruments within automated central control networks of GMP-compliant sterile fermenters and multi-stage distillation columns.
When using or replacing the RLM02 (3BSE091723R1) redundancy module, first ensure that the manual baud rate rotary switches on the front panel perfectly match the actual transmission speed of the PROFIBUS network; note that any adjustments require a power cycle to take effect. Second, since the module frequently acts as the endpoint of a physical bus segment, the built-in termination resistors on the connected RS-485 bus plugs must be turned to the "ON" position. Furthermore, given its IP20 open-chassis rating, it must be installed inside a clean, dry electrical enclosure. Lastly, as a pure hardware-level repeating device, it fully supports direct hot-swapping replacement without altering upper-level DCS software configurations, provided that all wiring and rotary positions are correctly replicated.
It is a professional PROFIBUS Redundancy Link Module manufactured by ABB.
What is the core function of RLM02 3BSE091723R1?
Its core function is to seamlessly convert a single, non-redundant PROFIBUS line into two fully redundant, inter-backed RS-485 links (Line A and Line B), or to perform the reverse consolidation.
How to properly use a product like RLM02 3BSE091723R1?
Snap it onto a standard 35mm DIN rail, connect non-redundant slave devices or the master through the single port (M), connect the dual redundant bus networks via redundant ports (A and B), and wire it to a 24V DC power supply.
How does RLM02 3BSE091723R1 switch when a cable break occurs?
The module's built-in hardware logic monitors both A and B signals simultaneously; if the preferred link suffers a failure or telegram error, it automatically and seamlessly switches within microseconds, ensuring zero data transmission interruption.
What transmission speeds (baud rates) are supported by RLM02 3BSE091723R1?
It fully supports all standard baud rates defined by the PROFIBUS specification, ranging from 9.6 kbit/s up to 12 Mbit/s, which can be manually configured via the rotary switch on the front panel.
We've Got You Covered
We give you access to a global supply of automation parts at your fingertips, ensuring that manufacturers around the world can avoid unnecessary downtime and continue to do what they do best – making our world possible.
Focus on supplying surplus and new automation spare parts With abundant inventory and partnerships with top manufacturers, Apter Power ensure high-quality solutions for your industrial requirements
Key control components
As a trustworthy supplier of surplus components, we procure parts from projects with excess inventory, system upgrades, factory shutdowns, and surplus suppliers. Our strict quality control ensure that our products achieve optimal performance
Warehouse Reserve
Many difficult to find parts, including PLC, HMI, DCS, panel controllers, industrial PCs, and VFDs. These parts help extend the lifespan of your existing system, reduce expensive replacement costs, and minimize downtime, thereby keeping your operations running smoothly
20 years of outstanding experience in industrial automation supply
For over 20 years, Apter Power always been a trustworthy leader in the industrial automation supply industry. As a trustworthy supplier of automation parts, we continuously expand our product line, expand our global customer base, and have won numerous awards
How do we deliver
How do we deliver
If you need complete documents to handle special situations such as letters of credit, we can ship small packages in 'cargo mode'. We can arrange freight or air freight for you, or cooperate with your freight agent
Urgency
If you require any other type of emergency or carrier, we need you to clearly specify this information on the order. We can usually ship on the same day. We do not charge additional fee, but it will depend on the expedited shipping option you use. Please let us know your level of urgency, and we will try our best to ship in the same day once you place order to us.
Freight Charge
If you contact us by phone, fax, or email, we can also provide you with this information. The product price does not include shipping or insurance fee. If you need, we are happy to provide a shipping quote and also can provide weight and size information. If you require proforma invoice, please let us know if you would like us to quote the shipping cost or if you would like us to use your shipping account.
Tracking
After the product have been shipped, we usually send your tracking number via email. Therefore, please be sure to provide your email address when registering or quoting.
Urgent requirements for automation or control components?
Urgent shipment of industrial automation parts
Shutdown will waste your time and money - always ready to assist you. As a reliable supplier of automation parts, we provide fast shipping services to quickly deliver critical components to your hands, minimizing downtime to the greatest extent possible.
Obsolute or hard to find parts
We focus on purchasing necessary and rare automation parts to maintain the operation of the manufacturing industry. No matter the year, scarcity, or location of the parts, we will find and deliver the parts you need
Our strongest business
Global supply of automation parts. Automation spare parts procurement and global suppliers can reduce cost, save time, and decrease MRO fee.
Extend equipment lifespan
As one of the most trusted suppliers of industrial automation parts, we deeply understand the importance of reliable performance. That's why we exceed industry standards, whether you're replacing old components or maintaining critical systems
Sustainable supply chain solutions
Our long-term success stems from our commitment to quality, reliability, and customer satisfaction. Whether you are purchasing rare spare parts. Apter Power stands out among industrial automation parts suppliers with its rich experience, high-quality service, and unparalleled quality assurance.
Why choose Apter Power?
Spare parts warehouse
We have a warehouse of 50000 square meters, providing tens of thousands of different spare parts, and 24/7 online sales personnel to provide support for you. Always available, crucial for both you and us.
Fast delivery
Experienced team members assist in providing our customers with fast delivery of automation and control components, delivering to over 60000 users worldwide.
High quality new spare parts service
Our extensive inventory of control systems (DCS, PLC, CNC), panel controllers, human-machine interfaces (HMI), industrial PCs, drivers, and power spare parts helps you reduce maintenance costs. Provide industrial automation spare parts that manufacturers no longer provide. We are a leading supplier that provides rare industrial automation parts to businesses of all sizes, with a strong track record of delivering the highest quality parts and services to customers at highly competitive price.
Videos
News
Applications
