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Mitsubishi Manuals
Controller
QJ71LP21
Reference manual
Mitsubishi QJ71LP21 Reference Manual
Q corresponding melsecnet/h network system melsec-q series
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Safety Precautions
Revisions
Table of Contents
Manuals
Conformation to the EMC Directive and Low Voltage Instruction
Generic Terms and Abbreviations
Product Components
1 Overview
Features
Abbreviations Used in the Text, Tables and Diagrams of this Manual
Functions Added/Changed with Upgrade to Function Version D
2 System Configuration
Single Remote I/O Networks
Configuration
Setting Items
Available Device Ranges
Multiple Remote I/O Network (Qnphcpu Only)
Configuration
Setting Items
Available Device Ranges
Multiplexed Remote I/O Network for Redundant System (Qnprhcpu Only)
Configuration
Setting Items
Available Device Ranges
Qj71Lp21S
Multiple Remote I/O Network
Configuration
Setting Items
Available Device Ranges
Precautions When Configuring the System
When Using a Multiple CPU System
Checking Function Version and Serial no
3 Specifications
Performance Specifications
Optical Loop System Performance Specifications
Coaxial Cable System Performance Specifications
Optical Fiber Cable Specifications
Coaxial Cable Specifications
Function Specifications
Cyclic Transmission Function (Periodic Communication)
Communicating with Input/Output Module
Communicating with Intelligent Function Module
RAS Functions
Output Reset Function for Communication Errors
Automatic Return Function
Loopback Function (Optical Loop System)
Station Detach Function (Coaxial Bus Systems)
Transient Transmission Enabled Even at CPU Module Error
Diagnostic Functions
Online Module Change in a Remote I/O Station
Link Data Send/Receive Processing Time Specifications
Link Data Send/Receive Processing
Transmission Delay Time
Switching Time from the Multiplexed Remote Master Station to the Multiplexed Remote Sub-Master Station in a Multiplexed Remote I/O Network
Output Holding Time During System Switching in the Multiplexed Remote I/O Network for Redundant System
4 Setup and Procedures before Starting the Operation
Procedures before Starting the Operation
Network Module Names and Settings
QJ71LP21, QJ71LP21-25, QJ71LP21G, QJ71LP21GE, QJ71BR11 (Remote Master Station)
Qj72Lp25-25, Qj72Lp25G, Qj72Lp25Ge, Qj72Br15
Installing and Uninstalling the Module
Stopping the CPU (Unintentional Output Prevention)
Checking the Input Power Supply Voltage
Powering on
Checking the on Status of the POWER LED of the Power Supply Module
Checking the on Status of the RUN LED of the Network Module
Standalone Check of the Network Module (Offline Tests)
Self-Loopback Test
Internal Self-Loopback Test
Hardware Test
Cable Connections
Optical Loop System
Coaxial Bus System
Offline Tests from GX Developer
Forward Loop/Reverse Loop Test (Remote Master Station Only)
Network Diagnostics from GX Developer (Online Tests)
Loop Test (Optical Loop System Only)
Setup Confirmation Test
Station Order Check Test (Optical Loop System Only)
Communication Test
5 Parameter Settings
Remote Master Station Parameter Setting
Setting the Number of Module Cards (Network Type)
Network Settings
Starting I/O no
Network no
Total (Slave) Stations
(Can be Set for Multiplexed Remote Master Station/Multiplexed Remote Sub-Master Station Only)
Mode
Parameter Setting Example
Common Parameter
LX/LY Settings
LB/LW Setting
Reserved Station Designation
Remote Sub-Master Station
Supplemental Settings
Network Refresh Parameters
Valid Module During Other Station Access
Redundant Settings
Remote I/O Station Parameter Settings
Remote I/O Station Possible Parameter Settings
6 Programming
Programming Precautions
Interlock Related Signals
Program Example
Cyclic Transmission
32-Bit Data Guarantee
Block Guarantee of Cyclic Data Per Station
Communication between Input/Output Module and Intelligent Function Module
Dedicated Link Instruction List
Using the Link Special Relays (SB)/ Link Special Registers (SW)
7 Application Functions
Transient Transmission Function (Non-Periodical Communication)
Dedicated Link Instruction
Reading/Writing Remote I/O Station Intelligent Function Module Buffer Memory (REMFR/REMTO)
Remote I/O Station System Monitor
Device Test for Remote I/O Station
Multiplex Transmission Function (Optical Loop System)
Return Sequence Station Number Setting Function
Reserved Station Function
Interrupt Settings
I/O Assignment Function
Stopping/Restarting the Cyclic Transmission and Stopping Link Refreshing (Network Test)
Multiplexed Remote Master Function (Qnphcpu Only)
Backup Function of Master Operation on System Switching between Control System and Standby System
Master Operation by the Station that Has Started up as the Control System
System Switching Request Function of Control System
Remote Password
8 Troubleshooting
Network Diagnostics (Network Monitor)
Host Information
Other Station Information
Network Monitor Details
Error History Monitor
Troubleshooting
Items to be Checked First
When Data Link Cannot be Executed on the Entire System
When Data Link Is Disabled Because of Reset or Power off of each Station
When a Specific-Station's Data Link Cannot be Executed
When the Transmission and Reception Data Are Abnormal
When the Dedicated Link Instruction Is Not Completed
When a Multiplexed Remote I/O Network for the Redundant System Does Not Operate Normally
Error Codes
MELSECNET/H Error Code List
Error Codes Corresponding to CPU Module Detected on Remote I/O Station
H/W Information
Appendix 1 Precautions When Changing over from a MELSECNET/10 Remote I/O Network to a MELSECNET/H Remote I/O Network
Appendix 2 Link Special Relay (SB) List
Appendix 3 Link Special Register (SW) List
Appendix 4 Special Relay (SM) for Remote I/O Modules List
Appendix 5 Special Register (SD) for Remote I/O Module List
Appendix 6 Discontinued Models that Can be Mounted on Remote I/O Stations
Appendix 7 External Dimensions
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Q Corresponding MELSECNET/H
Network System
Reference Manual
(Remote I/O network)
Mitsubishi Programmable
Logic Controller
QJ71LP21
QJ71LP21-25
QJ71LP21S-25
QJ71LP21G
QJ71LP21GE
QJ71BR11
QJ72LP25-25
QJ72LP25G
QJ72LP25GE
QJ72BR15
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This manual is also suitable for:
Qj71lp21-25
Qj71br11
Qj71lp21s-25
Qj72lp25-25
Qj72lp25g
Qj72lp25ge
...
Show all
Qj72br15
Qj71lp21g
Qj71lp21ge
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