LG Electronics 120S user manual Communication Function, Installation and Wiring

Chapter 8. Communication Function

8.1Dedicated Protocol Communication ·············· 8 - 1

8.1.1Introduction ·································································································· 8 - 1

8.1.2System configuration method ··········································································· 8 - 2

8.1.3Frame Structure ···························································································· 8 - 5

8.1.4Lists of Commands ························································································ 8 - 7

8.1.5Data Type ···································································································· 8 - 8

8.1.6Execution of Commands ················································································· 8 - 9

8.1.7 1:1, 1:n Built-in Communication between MASTER-K120S’s ································8 - 28

8.1.8Error Codes·································································································8 - 38

8.2User Defined Protocol Communication ············· 8 - 39

8.2.1Introduction ·································································································8 - 39

8.2.2Parameter Setting ·························································································8 - 39

8.2.3Instruction ·································································································8 - 47

8.2.4Example of usage ·······················································································8 - 48

8.3Modbus Protocol Communication ··············· 8 - 57

8.3.1Introduction ·································································································8 - 57

8.3.2Basic Specifications ······················································································8 - 57

8.3.3Parameter Setting ·························································································8 - 60

8.3.4Instruction and examples ··············································································8 - 62

8.4No Protocol Communication ················ 8 - 67

8.4.1Introduction ·································································································8 - 67

8.4.2Parameter Setting ·························································································8 - 68

8.4.3Instructions··································································································8 - 69

8.4.4Examples ··································································································8 - 71

8.5Remote Connection and Communication I/F module ········ 8 - 73

8.5.1Remote Connection·······················································································8 - 73

8.5.2Communication I/F Module ·············································································8 - 76

Chapter 9. Installation and Wiring

9.1Installation ······················· 9 - 1

9.1.1Installation Environment ·················································································· 9 - 1

9.1.2Handling Instructions ······················································································ 9 - 3

9.1.3Connection of Expansion Module ······································································ 9 - 6

9.2Wiring ························ 9 - 7

9.2.1Power Supply Wiring ······················································································ 9 - 7

9.2.2Input and Output Devices Wiring ······································································· 9 - 8

9.2.3Grounding ···································································································· 9 - 9

9.2.4Cable Specifications for wiring ·········································································· 9 - 9