Contents
II Beijing HollySys Intelligent Technologies Co., Ltd. All Rights Reserved
3.2 System Wiring ...................................................................................................................... 30
3.2.1 Power Wiring .................................................................................................................. 30
3.2.2 Redundancy Communication Wiring.............................................................................. 31
3.2.3 PROFIBUS-DP Wiring ................................................................................................... 32
3.2.4 I/O Cable ........................................................................................................................ 36
3.3 Grounding ............................................................................................................................ 38
Chapter 4 System Configuration .................................................................................................. 41
4.1 Hardware Configuration...................................................................................................... 41
4.1.1 Configure DP Slave Devices .......................................................................................... 41
4.1.2 Configure HOLLITCP Slave Devices ............................................................................. 49
4.1.3 Configure MODBUS TCP Protocol ................................................................................ 54
4.2 System Running .................................................................................................................. 61
4.2.1 Required Devices ........................................................................................................... 61
4.2.2 Device Wiring ................................................................................................................. 61
4.2.3 Network Connection ....................................................................................................... 62
4.2.4 Example Program........................................................................................................... 64
4.2.5 Download Program ........................................................................................................ 65
Chapter 5 Master Control Unit ...................................................................................................... 69
5.1 LK130 4-slot Backboard Module ..................................................................................... 69
5.1.1 Module Composition ...................................................................................................... 69
5.1.2 Installation Dimension .................................................................................................... 70
5.1.3 Technical specifications ................................................................................................. 71
5.2 LK921 24V Power Switching Module .............................................................................. 71
5.2.1 Operating Principle ......................................................................................................... 72
5.2.2 Wiring ............................................................................................................................. 72
5.2.3 Status Indication ............................................................................................................. 73
5.2.4 Installation Dimension .................................................................................................... 73
5.2.5 Technical Specifications ................................................................................................. 73
5.3 LK220 Master Control Module ......................................................................................... 74
5.3.1 Features ......................................................................................................................... 74
5.3.2 Appearance .................................................................................................................... 75
5.3.3 Operating Principle ......................................................................................................... 76
5.3.4 Status Indication ............................................................................................................. 77
5.3.5 Interface Specification .................................................................................................... 78
5.3.6 Key Switch ...................................................................................................................... 80
5.3.7 Reset .............................................................................................................................. 81
5.3.8 Power Fail Safeguard ..................................................................................................... 83
5.3.9 Backup Battery ............................................................................................................... 83
5.3.10 MODBUS Communication Settings ............................................................................... 83
5.3.11 Redundancy Data Area .................................................................................................. 90
5.3.12 Technical Specifications ................................................................................................. 90
5.4 LK249 DP Master Station Communication Module ....................................................... 91
5.4.1 Features ......................................................................................................................... 91
5.4.2 Appearance and Size ..................................................................................................... 92
5.4.3 Status Indication ............................................................................................................. 93
5.4.4 Operating Principle ......................................................................................................... 94
5.4.5 Terminal Definition ......................................................................................................... 94
5.4.6 Diagnosis ........................................................................................................................ 95
5.4.7 Set Baud Rate ................................................................................................................ 95
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