Filter
Top Products
A - 14 A - 14
(Related Manual-2) … Q Corresponding MELSEC Communication Protocol Reference Manual
SH-080008-F
1 OVERVIEW
1.1 Overview of the MELSEC Communication
Protocol
1.2 Features of the MELSEC Communication
Protocol
2 DATA COMMUNICATION USING THE MELSEC
COMMUNICATION PROTOCOL
2.1 Types and Applications of Data
Communication Frames
2.2 Accessible Range of Each Data
Communication Frames
2.3 How to Read the Control Procedures of the
MC Protocol
2.4 Access Timing of the PLC CPU Side
2.5 Setting Method for Writing to the PLC CPU
during RUN
2.6 Accessing Other Stations
2.7 Precautions on Data Communication
2.8 Time Chart and Communication Time of the
Transmission Sequence of the Serial
Communication Module
2.9 Transmission Time When Accessing Other
Stations Via MELSECNET/H, MELSECNET/10
2.10 Compatibility with Multiple CPU Systems
2.11 Compatibility with the Q00CPU, Q01CPU
Serial Communication Function
3 WHEN COMMUNICATING USING THE QnA
COMPATIBLE 3E/3C/4C FRAMES
3.1 Message Formats
3.2 List of Commands and Functions for the QnA
Compatible 3E/3C/4C Frames
3.3 Device Memory Read/Write
3.4 Buffer Memory Read/Write
3.5 Reading from and Writing to the Buffer
Memory of an Intelligent Function Module
3.6 PLC CPU Status Control
3.7 Drive Memory Defragmentation (for Other
Station QnACPU)
3.8 File Control
3.9 Registering, Deleting and Reading User
Frames: for Serial Communication Modules
3.10 Global Function: for Serial Communication
Modules
3.11 Data Transmission to an External device
(On-Demand Function): for Serial
Communication Modules
3.12 Initializing the Transmission Sequence: for
Serial Communication Modules
3.13 Mode Switching: for Serial Communication
Module
3.14 Turning Off Displayed LEDs and Initializing
Communication Error Information and Error
Code: for Serial Communication Module
3.15 Turning Off the COM.ERR LED: for Ethernet
Modules
3.16 Loopback Test
3.17 Registering or Canceling PLC CPU
Monitoring: for Serial Communication
Modules
3.18 Remote Password Unlock/Lock
4 WHEN COMMUNICATING USING THE QnA
COMPATIBLE 2C FRAMES
4.1 Control Procedures and Message Formats
4.2 Contents of the Data Designation Items
4.3 List of Commands and Functions for QnA
Compatible 2C Frames
4.4 Precautions on the Data Communication
4.5 Example of Data Communication Using QnA
Compatible 2C Frames
5 WHEN COMMUNICATING USING THE A
COMPATIBLE 1C FRAMES
5.1 Control Procedures and Message Formats
5.2 Device Memory Read/Write
5.3 Extension File Register Read and Write
5.4 Reading and Writing in the Buffer Memory of
an Intelligent Function Module
5.5 Loopback Test
6 WHEN COMMUNICATING USING THE A
COMPATIBLE 1E FRAMES
6.1 Message Formats and Control Procedures
6.2 List of Commands and Functions for A
Compatible 1E Frames
6.3 Device Memory Read/Write
6.4 Extension File Register Read and Write
6.5 Reading and Writing in the Buffer Memory of
an Intelligent Function Module
APPENDIX
Appendix-1 Reading and Writing by Designation
of the Device Memory Extension
Appendix 2 Reading from and Writing to the
Buffer Memory
Appendix-3 Processing Time of the PLC CPU
Side While Communicating Using
the MC Protocol