As the first domestic system-level 100% localized large-scale redundant PLC, the HollySys LK500 series controller establishes a new benchmark for industrial automation reliability. Built upon two decades of medium-to-large PLC engineering experience, it delivers robust multi-level redundancy and high-speed processing capabilities designed for critical infrastructure.
Operating within complex municipal, power generation, and data center environments, modern control systems demand absolute uninterrupted uptime and deterministic performance. The LK500 addresses these architectural challenges by combining a 1 GHz quad-core processor with a sub-20 ms redundancy switchover mechanism. Its comprehensive hardware redundancy encompasses power supplies, dual-rack CPUs, network loops, interface modules, and I/O lines, completely eliminating single points of failure in mission-critical applications.
Technical Specifications
CPU Model: LK-CU513R @ Main Controller Rack
Processor: 1 GHz Quad-Core Processor @ Core Processing Unit
System Memory: 1 GB @ System RAM
Storage Capacity: 8 GB EMMC @ Non-Volatile Storage
Bit Execution Time: <= 5 ns @ Boolean Operation
Integer Execution Time: <= 15 ns @ Arithmetic Operation
Floating Point Execution Time: <= 40 ns @ Floating Point Operation
Program Storage: >= 16 MB @ Flash Memory
Power Consumption: <= 6.5 W @ 24 VDC Backplane Power
Operating Temperature: 0°C - 60°C @ Standard Industrial Environment
Protection Rating: IP20 @ Enclosure Protection
Dimensions: 60 mm x 140 mm x 145 mm @ W x H x D
Weight: 510 g @ Module Unit Weight
破局高端：自主可控的系统级国产大型冗余PLC
The introduction of the LK500 series represents a critical milestone in achieving technological self-reliance for industrial control systems. Drawing from twenty years of specialized development in the automation sector, this platform successfully bridges the gap between imported tier-one systems and localized manufacturing requirements. Engineered specifically for high-reliability and high-safety applications, it provides an uncompromised solution for core national infrastructure.
Targeting complex environments such as water treatment plants, electrical substations, large-scale mining operations, and enterprise data centers, the controller ensures continuous process execution under extreme operational duress. By offering a fully localized system architecture from silicon processing down to application firmware, it mitigates supply chain vulnerabilities while delivering performance metrics that rival global industrial automation standards.
硬核架构：全冗余设计与毫秒级无缝切换
System availability depends directly on architectural fault tolerance, and the LK500 implements a comprehensive redundancy framework to protect against hardware degradation. The system supports power supply redundancy, dual-rack CPU master-standby synchronization, network topology redundancy, interface module (IM) redundancy, and complete I/O card redundancy. All modules support live insertion and removal (hot-swapping) to facilitate zero-downtime maintenance.
Performance metrics highlight the controller's rapid failure recovery, achieving a redundancy switchover time of under 20 milliseconds. Network reliability is further enhanced through versatile physical topologies, including single or dual optical fiber rings, AB structured networks, and star configurations. Long-distance remote node communication is supported via single-mode optical fiber up to 20 km or multi-mode fiber up to 2 km, ensuring vast plant-wide coverage without signal degradation.
软硬兼施：IEC61131-3 与 C/C++ 双剑合璧及强大通信
Engineering flexibility is maximized through an integrated development environment that strictly adheres to the IEC61131-3 international standard while extending support to advanced C and C++ programming languages. This dual-language approach accommodates diverse engineering backgrounds, allowing system developers to optimize complex control algorithms and execute modular software design efficiently.
Interconnectivity across disparate automation layers is achieved through native support for dominant industrial communication protocols. The controller seamlessly integrates PROFINET, EtherNet/IP, POWERLINK, Modbus TCP, Modbus RTU, and OPC UA. Such protocol versatility ensures smooth data exchange with third-party SCADA platforms, enterprise resource planning systems, and distributed field instrumentation without requiring complex gateway hardware.
全景模块矩阵：从基础I/O到高精度采集的工程适配
Scalability is a foundational pillar of the LK500 architecture, anchored by the high-performance LK-CU513R CPU module which manages up to 18-slot backplanes, supporting over 80,000 digital I/O points and 40,000 analog I/O points. The processing core handles up to 16 periodic tasks ranging from 1 ms to 2,000 ms, alongside 128 event tasks and 4 timed interrupts, ensuring precise execution timing for demanding control loops.
Specialized I/O modules extend the system's deployment range into high-precision measurement and safety monitoring domains. The analog input portfolio includes high-speed channels capable of full-module scanning within 1 ms at 0.1% accuracy, alongside dedicated resistance temperature detector modules supporting multi-wire configurations. Furthermore, sequence of events (SOE) modules provide 1 ms time-stamped resolution with deep event buffering, while dedicated counter and pulse train output modules facilitate precise motion and frequency measurement tasks.
工业级可靠性与选型维护指南
Industrial durability is embedded into the physical and logical design of every LK500 component. The system utilizes advanced non-volatile memory structures that eliminate the need for backup batteries while preserving critical data during power loss, complemented by a built-in supercapacitor that maintains the real-time clock for up to 30 days. System security is reinforced through multi-level user privilege management and an onboard diagnostic logging engine capable of recording over 10,000 system events.
When executing hardware selection for large-scale engineering projects, system integrators must evaluate processing load, remote I/O distribution, and environmental constraints. Main controller racks should be paired with dedicated communication processors (CP) to offload network traffic, while remote expansion nodes utilize robust interface modules linked via industrial Ethernet or optical fiber. For specialized applications, technical consultation with Beijing Zhongping Technology ensures accurate cross-reference selection and optimal hardware configuration tailored to specific plant requirements.
Frequently Asked Questions (FAQ)
1. What is the maximum program memory capacity supported by the LK500 CPU?
The LK-CU513R CPU module provides 16 MB of program memory storage, supplemented by 8 GB of EMMC non-volatile storage and a 200 KB retentive data retention zone.
2. Does the system support hot-swapping for all I/O modules?
Yes, the entire range of LK500 backplanes, power supplies, CPU units, and I/O modules supports live insertion and removal under power to facilitate zero-downtime maintenance.
3. What programming languages are compatible with the development environment?
The engineering software fully complies with the IEC61131-3 standard framework while providing native support for advanced C and C++ programming languages.
4. How does the controller handle redundant switchover during a primary CPU failure?
The system executes a seamless master-standby synchronization across dual-rack CPUs, achieving a deterministic redundancy switchover time of less than 20 milliseconds.
5. What is the maximum distance supported for optical fiber redundancy links?
The controller supports single-mode optical fiber transmissions up to 20 km and multi-mode optical fiber links up to 2 km using hot-swappable SFP transceiver modules.
6. Which industrial communication protocols are natively supported?
The controller natively supports PROFINET, EtherNet/IP, POWERLINK, Modbus TCP, Modbus RTU, OPC UA, and IRIG-B time synchronization protocols.
7. What is the execution speed of boolean instructions on the LK-CU513R processor?
The 1 GHz quad-core processor achieves a bit execution time of less than or equal to 5 nanoseconds and an integer execution time of under 15 nanoseconds.
8. Are backup batteries required to maintain retentive data during power outages?
No, the system utilizes advanced non-volatile memory technology that preserves retentive variables without requiring physical backup batteries, supported by an internal capacitor for real-time clock retention.
9. How can system integrators obtain localized technical support or replacement hardware?
Engineering teams can coordinate with Beijing Zhongping Technology to access comprehensive pre-shipment quality verification, cross-reference selection assistance, and dedicated regional supply chain support.
10. What is the standard warranty coverage and delivery timeline for LK500 components?
Procurement terms, standard factory warranties, and expedited logistics schedules for original LK500 hardware can be obtained directly by contacting the authorized regional sales distribution network.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a global industrial electrical automation service provider, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1) Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3) At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
+86 010-64225983
+8613811814778
Building 26, Liyuan Community, Chaoyang District, Beijing, China
