Introduction
LKS functional safety PLCs are the first set of dual-rack redundant safety PLCs developed by HollySys. They passed the SIL2 certification of TÜV SUD and comply with IEC61508, IEC61511 and EN50128, EN50129, EN50126 and IEC61784-3 standards. They adopt the latest electronic technology and single-loop diagnostic architecture (1oo1D) design. LKS functional safety PLCs can be applied to safety-related systems requiring a safety integrity level of SIL2 or below, such as Emergency Shutdown (ESD) system, Process Shutdown (PSD) system, and Burner Management System (BMS), Fire & Gas System (FGS), Emergency Trip System (ETS), and Gas Detection System (GDS) to provide safe and reliable solutions for different fields.
Features
· System with 1001D architecture and SIL2 certification
· Dual-rack redundancy configuration, and support for power, CPU, and communication redundancy
· Dual-core CPU with asymmetric AMP heterogeneous technology
· Controller adopting the safety and security fusion technology
· Over 90% of diagnosis coverage and over 100,000 h of MTBF
· International safety standards and safety protocols compliant in process and rail industry
· Operating temperature ranging from -40ºC to +70ºC and storage temperature ranging from -40ºC to +80ºC
· TÜV Rheinland certified reliability test center
· Implementation of hundreds of functional safety projects
· Participation in the preparation of national functional safety standards
· TÜV Functional Safety Engineer
Technical Specifications
Safty CPU Module LK220S
| Operation Speed |
| CPU dominant frequency |
Dual-core, 667 MHz |
| Instruction execution speed |
Typical value: 2.5 DMIPS/MHz |
| Memory |
| Program storage |
32 MB (16 MB for the system and 16 MB for users) |
| Memory |
512 MB, 800 Mbit/s, 32-bit width |
| Power-off hold |
512 KB |
| Expanding storage |
SD card, up to 32 GB |
| Ethernet |
| 10/100M |
Two-channel, dual-network-port redundancy, Modbus TCP protocol supported |
| Real Time Clock |
| Data format |
Year:month:day:hour: minute:second, BCD code |
| Clock accuracy |
Not more than 1 minute/month @25° C |
| Backplane Bus |
| Communication Speed |
2.5 Gb/S |
| Load Capacity |
1×4 route |
| Hot Swap |
| Module hot swap |
Support |
| System Capacity |
| I/O capacity |
The I/O capacity supported by the system is greater than 900 points |
| Configuration Capacity |
| Input variable area (I) |
Maximum space: 128 KB |
| Input variable area (Q) |
Maximum space: 128 KB |
| Global variable area (G) |
Maximum space: 1 MB |
| Free variable zone (M) |
Maximum space: 1 MB |
| Power-off holding area (R) |
Maximum space: 64 KB |
| Special register area (S) |
16 KB |
| Power |
| Power supply |
Provided by backplane |
| Module (max.) |
300mA @24VDC |
| Backup battery |
Capacitor power supply |
| Redundancy |
| Dual backplane redundancy |
Support hot-standby |
| Start Time |
Duration from module power-on to
user project start |
≤ 60s |
| Physical Characteristics |
| Installation mode |
Backplane Slot |
| Module dimensions (W×H×D) |
44.7 mm ×166 mm ×152 mm |
| Weight |
382 g |
| Environmental Conditions |
| Operating temperature |
0ºC to +60ºC |
| Storage temperature |
-40ºC to +70ºC |
| Relative humidity |
5% to 95% non-condensing |
Packaging & Delivery
| Category |
International Commercial Terms (Incoterms) |
Terms of Payment |
Nearest Port |
| LKS Functional Safty PLC |
CIF, CFR, DAP |
LC, T/T, D/P |
Shanghai, Guangzhou, Tianjin |
Company Profile
Audited Supplier 
Audited Supplier 
){kind=link}
){kind=link}