Mitsubishi Electric FX3U-ENET-ADP User Manual page 10

FX -ENET-ADP User's Manual
3U
6. Introduction of Functions
6.1 Functions List ................................................................................................................................ 32
6.2 Details of functions........................................................................................................................ 32
6.2.1 MELSOFT connections ................................................................................................................. 32
6.2.2 Communication Using MC Protocol............................................................................................... 32
6.2.3 MELSOFT Direct Connection (Simple Connection) ...................................................................... 33
6.2.4 Find CPU function ......................................................................................................................... 33
6.2.5 Time setting function ..................................................................................................................... 34
6.2.6 Parameter setting function............................................................................................................. 36
6.2.7 The diagnostics function from MELSOFT...................................................................................... 36
6.3 Setting Items List........................................................................................................................... 37
6.4 Settings and Procedures Prior to Starting the Operation .............................................................. 37
6.5 Ethernet adapter Setting ............................................................................................................... 38
6.6 Operational Settings...................................................................................................................... 39
6.7 Overview of the Communication Procedure.................................................................................. 40
6.8 Initial Processing ........................................................................................................................... 41
6.8.1 Initial processing............................................................................................................................ 41
6.8.2 Initial settings................................................................................................................................. 41
6.8.3 Re-initialization .............................................................................................................................. 41
6.9 Router Relay Parameter ............................................................................................................... 41
6.10 Confirming Completion of Initial Processing ............................................................................... 41
6.10.1 PING command (Personal computer -> Ethernet adapter) ......................................................... 42
6.10.2 Loop back test (Communication using MC protocol)................................................................... 43
6.11 Open Settings ............................................................................................................................. 43
6.12 Open Processing/Close Processing of the Connection .............................................................. 44
7. Communication Using MC Protocol
7.1 Data Codes for Communication .................................................................................................... 47
7.2 Data Communication Function...................................................................................................... 47
7.2.1 Accessing the PLC using MC protocol .......................................................................................... 48
7.2.2 How to Read the Control Procedures of the MC Protocol ............................................................. 48
7.2.3 Access Timing on the PLC Side .................................................................................................... 49
7.2.4 PLC setting for performing data communication ........................................................................... 49
7.2.5 Precautions on Data Communication ............................................................................................ 50
7.3 Message Formats and Control Procedures .................................................................................. 50
7.3.1 How to read the command reference section................................................................................ 50
7.3.2 Message format and control procedure......................................................................................... 51
7.3.3 Contents of data designation items ............................................................................................... 54
7.3.4 Character area transmission data ................................................................................................. 58
7.4 List of Commands and Functions for The MC protocol................................................................. 62
7.5 Device Memory Read/Write .......................................................................................................... 64
7.5.1 Commands and device range........................................................................................................ 64
7.5.2 Batch read in bit units (command: 00)........................................................................................... 66
7.5.3 Batch write in bit units (command: 02) .......................................................................................... 68
7.5.4 Test in bit units (random write) (command: 04) ............................................................................. 70
7.5.5 Batch read in word units (command: 01)....................................................................................... 72
7.5.6 Batch write in word units (command: 03) ...................................................................................... 76
7.5.7 Test in word units (random write) (command: 05) ......................................................................... 80
7.6 Remote RUN/STOP, PLC model name code read ....................................................................... 82
7.6.1 Commands and control contents................................................................................................... 82
7.6.2 Remote RUN (command: 13H)/Remote STOP (Command: 14H) ................................................ 83
7.6.3 PLC model name read (command: 15H)....................................................................................... 84
7.7 Loopback Test............................................................................................................................... 86
7.7.1 Loopback test (command: 16H) .................................................................................................... 86
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