Hollysys LKS Safety PLC - Logic Control/Safety Interlock - SIL2 Certified Metal Shell for Petrochemical ESD System Control
SIL2-Certified Functional Safety PLC for Critical Applications
The Hollysys LKS series is China's first SIL2-certified dual-rack redundant safety PLC, designed for high-reliability industrial automation. It utilizes a 1oo1D architecture with over 90% diagnostic coverage and 100,000-hour MTBF for maximum safety integrity. This PLC is ideal for Emergency Shutdown Systems (ESD), Process Shutdown Systems (PSD), Burner Management Systems (BMS), and Fire & Gas Systems (FGS) in chemical, energy, and pharmaceutical industries.
Advanced Technical Specifications and Robust Performance
Key specifications include a dual-core 667MHz CPU, 32MB program storage, 512MB memory, and dual 10/100M Ethernet ports with redundancy. The system supports over 900 I/O points per control station with 124 I/O slave stations capacity and features hot-swappable modules for easy maintenance. Advantages include 99.99% safety loop availability, -40°C to +70°C operating temperature range, and compliance with IEC61508, IEC61511, EN50128, EN50129 standards.
Product Specifications: Hollysys LKS Series Safety PLC
| Parameter Category |
Specification Details |
| Product Series |
LKS Series (Functional Safety PLC) |
| Safety Certification |
TÜV SÜD SIL2 Certification |
| Safety Architecture |
1oo1D (Single-loop diagnostic architecture) |
| CPU Module Model |
LK220S Safety CPU Module |
| CPU Specifications |
Dual-core, 667 MHz |
| Memory |
Program: 32 MB (16 MB system + 16 MB user) Memory: 512 MB |
| Redundancy |
Dual-rack redundancy, supports hot-standby for power, CPU & communication |
| Communication |
2 × 10/100 Mbps Ethernet ports (Modbus TCP) |
| Operating Temperature |
-40℃ to +70℃ |
| Storage Temperature |
-40℃ to +80℃ |
| Typical Applications |
ESD, PSD, BMS, FGS, ETS, GDS, Process & Rail industries |
Packaging & Shipping
Company Information
Xiamen ZhiCheng Automation Technology Co., Ltd is a leading global supplier of control system components. We specialize in control systems and drives.
With many years of experience in the industrial sector, we consistently deliver the highest quality spare parts to ensure all jobs are completed perfectly.
Our Specializations
We are major in PLC, Sensors, HIM, Transmitters.
Best Supply Brands
- Bently Nevada
- +GF+
- ABB
- Foxboro
- HIKROBOT
Good working environment, perfect team, sincere cooperation → Achieve you and our success!
