1 Definitions of Terms .................................................................................................................................... 1

2 System Configuration of H/W ..................................................................................................................... 3

2.1 System Configuration................................................................................................................................................ 4

2.2 Relation of RIO Unit and Devices ............................................................................................................................. 6

2.2.1 Outline of the Remote I/O Unit ......................................................................................................................... 6

2.2.2 PLC Device Assignment of Digital Signal (DI/DO) ........................................................................................... 8

2.2.2.1 Fixed Device Assignment ........................................................................................................................ 9

2.2.2.2 Arbitrary Device Assignment ................................................................................................................. 10

2.2.3 Relation of Connector Pins and Device.......................................................................................................... 14

2.2.4 Setting Example When Connecting Directly to the Control Unit..................................................................... 16

2.3 Fixed Signals........................................................................................................................................................... 17

2.3.1 Ignoring Fixed Signals .................................................................................................................................... 17

2.3.2 Changing the Addresses of Fixed Signals ..................................................................................................... 18

2.4 PLC I/F Axis Random Device Assignment.............................................................................................................. 19

2.4.1 Function Enabling Conditions......................................................................................................................... 20

2.4.2 Random Assignment of Bit-type Device ......................................................................................................... 20

2.4.3 Example Usage .............................................................................................................................................. 21

2.5 Outline of Digital Signal Input Circuit....................................................................................................................... 22

2.6 Outline of Digital Signal Output Circuit.................................................................................................................... 23

2.7 Outline of Analog Signal Input Circuit ..................................................................................................................... 25

2.8 Outline of Analog Signal Output Circuit................................................................................................................... 26

2.9 Outline of I/O Assignment with PROFIBUS-DP ...................................................................................................... 27

2.10 Flow of Signals...................................................................................................................................................... 28

2.11 List of Devices....................................................................................................................................................... 29

2.11.1 Device Range Setting at Multi-project .......................................................................................................... 30

2.12 File Register General Map .................................................................................................................................... 32

3 Input/Output Signals with Machine .......................................................................................................... 35

3.1 Machine Input Signals............................................................................................................................................. 37

3.1.1 Input Signals from Machine ............................................................................................................................ 37

3.1.2 PLC Switch/Sensor ........................................................................................................................................ 41

3.2 Machine Output Signals .......................................................................................................................................... 43

3.2.1 Output Signals to Machine ............................................................................................................................. 43

3.2.2 PLC Switch ..................................................................................................................................................... 47

4 System Configuration of Development Environment............................................................................. 51

4.1 System Configuration for PLC Development .......................................................................................................... 52

4.2 User PLC (Ladder) Development Procedure .......................................................................................................... 53

5 Peripheral Development Environment (GX Works2) .............................................................................. 55

5.1 Outline..................................................................................................................................................................... 56

5.1.1 Software Configuration ................................................................................................................................... 56

5.1.2 Operating Environment .................................................................................................................................. 57

5.2 Types of GX Works2 Projects and Programs Used for Mitsubishi Electric CNC .................................................... 58

5.2.1 Support Status of Project Types, Program Types and POUs ........................................................................ 58

5.3 GX Works2 Functions Available for Mitsubishi Electric CNC.................................................................................. 60

5.3.1 Function Support Status (Common Functions) .............................................................................................. 61

5.3.2 Function Support Status (Label Setting) ........................................................................................................ 65

5.3.3 Function Support Status (Device Comments) ................................................................................................ 65

5.3.4 Function Support Status (Ladder Diagram).................................................................................................... 66

5.3.5 Function Support Status (ST Language) ........................................................................................................ 68

5.3.6 Function Support Status (Online) ................................................................................................................... 69

5.3.7 Function Support Status (NC Special Functions) ........................................................................................... 71

5.4 Preparation.............................................................................................................................................................. 72

5.4.1 Installing Tools ............................................................................................................................................... 72

5.4.2 Preparing Ethernet Communication ............................................................................................................... 72

5.4.2.1 Checking IP address of CNC unit .......................................................................................................... 72

5.4.2.2 Checking CNC unit setting prohibiting connection from GX Developer/GX Works2 ............................. 72

5.4.2.3 Setting IP Address of Personal Computer ............................................................................................. 72

5.4.2.4 Connecting the Ethernet Cable.............................................................................................................. 72

5.4.2.5 Setting Connection Destination ............................................................................................................. 73

Contents