Contents

SAFETY PRECAUTIONS
CONDITIONS OF USE FOR THE PRODUCT
CONTENTS
MANUALS
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES
MANUAL PAGE ORGANIZATION
GENERIC TERMS AND ABBREVIATIONS
DEFINITIONS OF TERMINOLOGY
PACKING LIST
CHAPTER 1 OVERVIEW
- 1.1 Features
CHAPTER 2 SYSTEM CONFIGURATION
- 2.1 CC-Link IE Controller Network Configurations
  - 2.1.1 Single network system
  - 2.1.2 Redundant system
  - 2.1.3 Multi-network system
- 2.2 Network Components
  - 2.2.1 Order of optical fiber cables (Optional)
  - 2.2.2 CC-Link IE Controller Network interface board
  - 2.2.3 CC-Link IE Controller Network communication unit
- 2.3 Applicable Systems
- 2.4 Checking the Function Version and Serial No.
CHAPTER 3 SPECIFICATIONS
- 3.1 Performance Specifications
- 3.2 Function Lists
- 3.3 Buffer Memory
  - 3.3.1 Buffer memory list
  - 3.3.2 Transient transmission error log
  - 3.3.3 Transmission path switching history
CHAPTER 4 FUNCTIONS
- 4.1 Cyclic Transmission Function
  - 4.1.1 Communication using LB/LW
  - 4.1.2 Communication using LX/LY
  - 4.1.3 Link refresh
  - 4.1.4 Direct access to link devices
  - 4.1.5 Assurance of cyclic data integrity
  - 4.1.6 Cyclic transmission punctuality assurance
  - 4.1.7 Constant link scan
  - 4.1.8 Group cyclic transmission
  - 4.1.9 Increase of send points by mounting multiple CC-Link IE Controller Network modules of the same network No.
  - 4.1.10 Reserved station specification
  - 4.1.11 Interlink transmission
  - 4.1.12 Stop/restart of cyclic transmission
- 4.2 Transient Transmission Function
  - 4.2.1 List of dedicated instructions and transient transmission range
  - 4.2.2 Group function
  - 4.2.3 Routing function
  - 4.2.4 Clock setting with a programming tool
  - 4.2.5 Changing the number of transient transmissions
- 4.3 IP Packet Transfer Function
  - 4.3.1 System configuration of the IP packet transfer function
  - 4.3.2 How to set the IP packet transfer function
  - 4.3.3 IP communication test
  - 4.3.4 Relay using CC-Link IE Field Network
  - 4.3.5 Precautions
  - 4.3.6 Example of communications using the IP packet transfer function
  - 4.3.7 Communication speed
- 4.4 RAS Functions
  - 4.4.1 Control station switching function
  - 4.4.2 Loopback function
  - 4.4.3 Automatic return function
  - 4.4.4 Cable fault detection function
  - 4.4.5 Cable insertion error detection function
  - 4.4.6 Detection of duplicated control station or station No.
  - 4.4.7 External power supply function
- 4.5 Interrupt Request to CPU Module
- 4.6 Station No. Setting by Sequence Program
- 4.7 Redundant-CPU-Compatible Function
  - 4.7.1 Overview of redundant system operation
  - 4.7.2 System switching request to control system CPU
CHAPTER 5 PREPARATION AND SETUP
- 5.1 Implementation and Installation
  - 5.1.1 Handling precautions
- 5.2 Pre-operational Procedure
- 5.3 Part Names
- 5.4 Testing the CC-Link IE Controller Network Module
  - 5.4.1 Hardware test
  - 5.4.2 Self-loopback test
- 5.5 Wiring
- 5.6 Tests for CC-Link IE Controller Network Startup
  - 5.6.1 Circuit test
  - 5.6.2 Station-to-station test
- 5.7 Test Before CC-Link IE Controller Network Operation
  - 5.7.1 Communication test
CHAPTER 6 PARAMETER SETTING
- 6.1 Parameter List
- 6.2 Network Settings
- 6.3 Network Range Assignment
  - 6.3.1 LB/LW settings
  - 6.3.2 LX/LY settings
  - 6.3.3 Shared group
  - 6.3.4 Pairing
  - 6.3.5 Reserved station specification
  - 6.3.6 Supplementary settings
- 6.4 Network Operation Settings
- 6.5 Refresh Parameters
  - 6.5.1 Refresh parameter setting
  - 6.5.2 Change of transfer target CPU-side device
  - 6.5.3 Default settings
- 6.6 Interrupt Settings
- 6.7 Redundant Settings
- 6.8 Interlink Transmission Parameters
- 6.9 Routing Parameters
CHAPTER 7 PROCESSING TIME
- 7.1 Link Scan Time
- 7.2 Link Refresh Time
  - 7.2.1 Interlink transmission time
- 7.3 Cyclic Transmission Delay Time
  - 7.3.1 Cyclic transmission delay time
  - 7.3.2 Transmission delay time calculation example
- 7.4 Dedicated Instruction Transmission Delay Time
  - 7.4.1 Link dedicated instruction transmission delay time
  - 7.4.2 CC-Link dedicated instruction transmission delay time
- 7.5 Cyclic Data Retention Time for System Switching in a Redundant System
CHAPTER 8 PROGRAMMING
- 8.1 Program Example of a Single Network System
  - 8.1.1 System configuration
  - 8.1.2 Setting and communication contents
  - 8.1.3 Program example of cyclic transmission
  - 8.1.4 Program example of transient transmission
  - 8.1.5 Program example of an interrupt request
  - 8.1.6 Program example of error detection in other stations
- 8.2 Program Example of a Multi-network System
  - 8.2.1 System configuration
  - 8.2.2 Setting and communication contents
  - 8.2.3 Program example of cyclic transmission
  - 8.2.4 Program example of transient transmission
- 8.3 Using Link Special Relay (SB) and Link Special Register (SW)
CHAPTER 9 DEDICATED INSTRUCTIONS
- 9.1 List of Dedicated Instructions and Available Devices
- 9.2 Precautions for Dedicated Instructions
  - 9.2.1 Precautions for dedicated instructions (common)
  - 9.2.2 Precautions for link dedicated instructions
  - 9.2.3 Precautions for CC-Link dedicated instructions
- 9.3 JP/GP. READ (Data Read from Programmable Controllers on Other Stations)
- 9.4 JP/GP.SREAD (Data Read from Programmable Controllers on Other Stations)
- 9.5 JP/GP.WRITE (Data Write to Programmable Controllers on Other Stations)
- 9.6 JP/GP.SWRITE (Data Write to Programmable Controllers on Other Stations)
- 9.7 J(P)/G(P).REQ (Remote RUN/STOP)
- 9.8 J(P)/G(P).REQ (Reading/Writing Clock Data)
- 9.9 JP/GP.SEND (Data Transmission to Programmable Controllers on Other Stations)
- 9.10 JP/GP.RECV (Data Reception from Programmable Controllers on Other Stations)
- 9.11 Z.RECVS (Data Reception from Programmable Controllers on Other Stations)
- 9.12 J(P).ZNRD (Data Read from Programmable Controllers on Other Stations)
- 9.13 J(P).ZNWR (Data Write to Programmable Controllers on Other Stations)
- 9.14 Z(P).RRUN (Remote RUN)
- 9.15 Z(P).RSTOP (Remote STOP)
- 9.16 Z(P).RTMRD (Clock Data Read from Programmable Controllers on Other Stations)
- 9.17 Z(P).RTMWR (Clock Data Write to Programmable Controllers on Other Stations)
- 9.18 Z(P).UINI (Station No. Setting of Own Station)
- 9.19 J(P)/G(P).RIRD (Data Read from Programmable Controllers on Target Station)
- 9.20 J(P)/G(P).RIWT (Data Write to Programmable Controllers on Target Station)
CHAPTER 10 TROUBLESHOOTING
- 10.1 Troubleshooting Flow
  - 10.1.1 RUN LED is OFF
  - 10.1.2 EXT.PW LED is OFF
  - 10.1.3 MODE LED is OFF or flashing
  - 10.1.4 D LINK LED is OFF
  - 10.1.5 D LINK LED is flashing
  - 10.1.6 Cyclic transmission is disabled
  - 10.1.7 Transient transmission is disabled
  - 10.1.8 IP communications cannot be performed using the IP packet transfer function.
  - 10.1.9 Data link is disabled in the redundant system
  - 10.1.10 Data link is disabled on a station of a Basic model QCPU or safety CPU
- 10.2 Error Codes
  - 10.2.1 Checking the error code
  - 10.2.2 Error code list
- 10.3 CC IE Control Diagnostics
  - 10.3.1 Network information display
  - 10.3.2 Select station network device status display
  - 10.3.3 Logging
  - 10.3.4 System monitor
  - 10.3.5 Remote operation
- 10.4 Checking the Error Description with the CC IE Control Diagnostics
  - 10.4.1 Cable disconnection or line being established
  - 10.4.2 Cable insertion error
  - 10.4.3 Monitoring timeout
  - 10.4.4 Parameter unreceived
  - 10.4.5 Own station No. is out of range
  - 10.4.6 Own station is set as reserved station
  - 10.4.7 Own station No. duplication
  - 10.4.8 Control station duplication
  - 10.4.9 Control station duplication and own station No. duplication
  - 10.4.10 Illegal network No.
  - 10.4.11 CPU module stop error
  - 10.4.12 CPU module power stop error
  - 10.4.13 External power not supplied
APPENDICES
- Appendix 1 Link Special Relay (SB) List
- Appendix 2 Link Special Register (SW) List
- Appendix 3 Functional Upgrade of CC-Link IE Controller Network
- Appendix 4 Comparison Between CC-Link IE Controller Network and MELSECNET/H
  - Appendix 4.1 Comparison of specifications
  - Appendix 4.2 Comparison of function
  - Appendix 4.3 Link special relays (SB) and link special registers (SW)
  - Appendix 4.4 Precautions for system replacement
  - Appendix 4.5 Precautions for program replacement
- Appendix 5 Parameter Sheet
  - Appendix 5.1 Link device assignment sheet
  - Appendix 5.2 Quantity setting parameter sheet
  - Appendix 5.3 Network range assignment parameter sheet (for control station only)
  - Appendix 5.4 Refresh parameter sheet
  - Appendix 5.5 Interrupt setting parameter sheet
  - Appendix 5.6 Interlink transmission parameter assignment sheet
  - Appendix 5.7 Routing parameter sheet
- Appendix 6 External Dimensions
  - Appendix 6.1 QJ71GP21-SX
  - Appendix 6.2 QJ71GP21S-SX
INDEX
REVISIONS
WARRANTY

Mitsubishi Electric QJ71GP21 SX, QJ71GP21S Reference Manual

Mitsubishi Electric QJ71GP21 SX, QJ71GP21S manual cover

Pages 674

Year 2007

Language(s)

of 674

Mitsubishi Electric QJ71GP21 SX, QJ71GP21S Specification

The Mitsubishi Electric QJ71GP21 SX and QJ71GP21S are sophisticated communication modules designed for integration within Mitsubishi's Q Series PLC systems, facilitating seamless data exchange across networks. These modules support Ethernet connectivity, enabling high-speed communication and efficient data handling in industrial automation environments. The QJ71GP21 SX and QJ71GP21S feature Ethernet interfaces compliant with IEEE 802.3 standards, ensuring compatibility with a wide range of network devices.

Both models are equipped with advanced communication capabilities, including support for TCP/IP, UDP, and MELSEC protocol, which provide robust data transfer options for various industrial applications. The modules offer an impressive data transfer rate, optimizing communication efficiency and reducing latency in network operations. They are designed to handle multiple communication tasks simultaneously, making them suitable for complex automation systems requiring reliable and uninterrupted data flow.

These modules boast a user-friendly configuration process, facilitated by Mitsubishi's intuitive programming software, which simplifies integration into existing systems. They also offer diagnostic tools for monitoring network status and troubleshooting, ensuring high system reliability and minimizing downtime. The QJ71GP21 SX and QJ71GP21S are engineered for durability and longevity, with a design that meets industrial standards for electromagnetic compatibility and environmental resilience. Their compact form factor allows for easy installation within the Q Series PLC rack, optimizing space utilization.

Overall, the Mitsubishi Electric QJ71GP21 SX and QJ71GP21S modules provide robust and flexible communication solutions tailored for demanding industrial settings, enhancing operational efficiency through reliable network connectivity and data management.

Mitsubishi Electric QJ71GP21 SX, QJ71GP21S F.A.Q.

What is the primary function of the Mitsubishi Electric QJ71GP21-SX module?

The QJ71GP21-SX module is a communication module used for Ethernet communication within a MELSEC-Q series PLC system. It allows for data exchange between the PLC and other Ethernet-enabled devices.

How can I troubleshoot connectivity issues with the QJ71GP21-SX module?

Ensure that all physical connections are secure and check the Ethernet cable for any damage. Verify the IP address settings and ensure there are no conflicts. Use diagnostic tools like ping tests to check network connectivity.

What are the steps for configuring the IP address on the QJ71GP21-SX module?

To configure the IP address, access the module parameters via the GX Works2 software. Navigate to the 'Ethernet Settings' section and input the desired IP address, subnet mask, and default gateway. Apply the changes and restart the module to activate the new settings.

Can the QJ71GP21-SX module be used with third-party devices?

Yes, the QJ71GP21-SX module can communicate with third-party devices that support standard Ethernet protocols, such as TCP/IP and UDP. Ensure proper protocol configuration for successful communication.

How do I update the firmware on the QJ71GP21-SX module?

To update the firmware, download the latest firmware from the Mitsubishi Electric website. Connect to the module using the GX Works2 software and follow the firmware update instructions provided in the software's update tool.

What maintenance practices are recommended for the QJ71GP21-SX module?

Regularly check for firmware updates and apply them as needed. Ensure that the module is operating within temperature and humidity specifications. Periodically inspect Ethernet cables for wear and replace as necessary.

How can I ensure data security when using the QJ71GP21-SX module?

Implement network security measures such as firewalls and VLANs. Use secure protocols and encryption for data transmission. Regularly update passwords and restrict network access to authorized personnel only.

What is the difference between the QJ71GP21-SX and QJ71GP21S modules?

The QJ71GP21-SX is an enhanced version with additional features such as support for extended temperature ranges and improved performance metrics compared to the QJ71GP21S. Both modules offer similar basic communication functions.

How do I integrate the QJ71GP21-SX module with a SCADA system?

To integrate with a SCADA system, configure the QJ71GP21-SX module to communicate using a supported protocol such as Modbus TCP. Ensure that the SCADA system is configured to recognize the module's IP address and data points.

What precautions should be taken during the installation of the QJ71GP21-SX module?

Ensure that the module is installed in a suitable environment that meets the specified temperature and humidity requirements. Avoid exposure to dust and corrosive substances. Follow proper grounding and shielding practices to prevent electrical interference.