HollySys LK Series User Manual

Chapter 5 Master Control Unit
74 Beijing HollySys Intelligent Technologies Co., Ltd. All Rights Reserved
24V Power Switching Module
Input Voltage
24VDC(-15%,+20%)
Input Current
2A max.
Power Output
Quantity
1
Input/Output Voltage Drop
1V
±
0.2V (based on a single -channel current of 2A)
Physical Property
Installation Pattern
Backboard slot
Protection Key Position
None
Module Dimension (W*H*D)
62.7 mm*166 mm*152 mm
±
0.5 mm
5.3 LK220 Master Control Module
LK220 is the master control module of PLC. It is the core for PLC operation and control, capable of
raw data input, data operation and new data output. The master controller realizes man-machine
interaction with the master control room via Ethernet. The master controller realizes interaction with
the redundancy, communication and I/O module data via the internal bus.
When LK249 is used to connect IO slave station, up to 124 IO slave stations are available, with the
address range of 2~125. When LK234 is used to connect IO slave station, up to 640 IO slave stations
are available. The supported I/O points no less than 10,000.
5.3.1 Features
 Support storage via Flash and SD card
 Support dual Ethernet ports
 Support TCP/IP and MODBUS-TCP Protocols
 To support the backboard bus
 Hot swapping
 Support SD card update
 Support power fail safeguard

HollySys LK Series Specifications

General

Brand	HollySys
Model	LK Series
Category	Controller
Language	English