Contents

SAFETY PRECAUTIONS
CONDITIONS OF USE FOR THE PRODUCT
INTRODUCTION
CONTENTS
RELEVANT MANUALS
TERMS
GENERIC TERMS AND ABBREVIATIONS
1 FUNCTIONS
- 1.1 I/O Data Exchange Function
  - I/O data exchanges on DP-Master
  - I/O data exchanges with DP-Slaves
- 1.2 Check of Diagnostic Information
  - Acquisition of diagnostic information and extended diagnostic information
  - Notification function of extended diagnostic information
- 1.3 Global Control Function
- 1.4 Acyclic Communication Function
- 1.5 Alarm Acquisition Function
- 1.6 Time Control over DP-Slaves
- 1.7 Data Swap Function
- 1.8 Data Consistency Function
- 1.9 Output Setting Function for CPU Stop Error
  - Settings for DP-Master
  - Settings for DP-Slaves
- 1.10 Temporarily Reserved Station Specification Function
- 1.11 Operation Mode Changing Function
- 1.12 Communications with DP-Master (Class 2)
  - I/O data read function
  - Read function of I/O configuration information
  - FDL address changing function
- 1.13 Redundant System Function
  - System configuration
  - Setting method
  - System switching operation
  - Precautions
  - System switching request to the CPU module of the control system
  - Restricted functions in the redundant system
2 PARAMETER SETTINGS
- 2.1 Parameter Settings on DP-Master
  - Module parameter
  - PROFIBUS Module Setting
  - Update of PROFIBUS Labels
  - Stopping online function and diagnostics function
  - Writing parameters
- 2.2 Parameter Settings on DP-Slave
  - Module parameter
  - Writing parameters
  - Slave parameter settings on DP-Master
3 PROFIBUS Configuration Tool
- 3.1 Window Structure
- 3.2 "PROFIBUS Configurator Tasks" Window
  - Online Tasks
  - Setup Tasks
  - Export Tasks
  - Import Tasks
  - Documentation
  - Diagnostics
  - Version
- 3.3 "PROFIBUS Network" Window
  - Master Settings
  - Bus Parameter Settings
  - CPU Device Access
  - Slave Settings
- 3.4 Checking the Software Version
4 PROGRAMMING
- 4.1 System Configuration Example
- 4.2 DP-Master Settings
- 4.3 DP-Slave Settings
- 4.4 Checking the Network Status
- 4.5 Interlock of Function Mode (Station Type)
- 4.6 Program Example of DP-Master
  - Program example for changing operation mode (self-diagnostics test)
  - Program example of the acquisition of diagnostic information
  - Program example of the acquisition of extended diagnostic information
  - Program example of the global control function
  - Program example of acyclic communication (acyclic communication)
  - Program example of the alarm acquisition function
  - Program example of the time control over DP-Slaves
- 4.7 Program Example of DP-Slaves
  - Program example for changing operation mode (self-diagnostics test)
  - Program example of notification request of extended diagnostic information
  - Program example for executing global control
- 4.8 Program Example of Redundant System
  - System configuration example
  - DP-Master settings
  - Writing parameters
  - Program example of the I/O data exchange function
5 TROUBLESHOOTING
- 5.1 Checking with LED
- 5.2 Checking the Module Status
  - Offline test
- 5.3 Checking the Network Status
  - Checking with the buffer memory
  - Checking with PROFIBUS Configuration Tool
- 5.4 Troubleshooting by Symptom
  - Troubleshooting by symptom on DP-Master
  - Troubleshooting by symptom on DP-Slave
  - Troubleshooting by symptom in the redundant system
- 5.5 List of Error Codes
- 5.6 List of Status Codes
- 5.7 Event List
APPENDICES
- Appendix 1 I/O Signals of DP-Master
  - List of I/O signals
  - I/O signals of DP-Master and global label compatibility list
  - Details of I/O signals of DP-Master
- Appendix 2 I/O Signals of DP-Slave
  - List of I/O signals of DP-Slave
  - Details of I/O signals of DP-Slave
- Appendix 3 Buffer Memory of the DP-Master
  - List of buffer memory addresses on DP-Master
  - List of buffer memory addresses and global labels on DP-Master
  - Details of buffer memory addresses on DP-Master
- Appendix 4 Buffer Memory Addresses on DP-Slave
  - List of buffer memory addresses on DP-Slave
  - Details of buffer memory addresses on DP-Slave
- Appendix 5 Processing Time
  - Bus cycle time
  - Transmission delay time
  - System switching time
- Appendix 6 Differences Between QJ71PB92V and RJ71PB91V
  - Performance
  - LED
- Appendix 7 Mounting the RJ71PB91V with a Remote Head Module
  - Restrictions on functions and specifications
  - Communication example
  - DP-Master settings of the CC-Link IE Field Network
  - Remote head module settings
  - DP-Slave settings of the PROFIBUS-DP network
  - Checking the system status
  - Program example
- Appendix 8 Using the Module in the Redundant System with Redundant Extension Base Unit
  - Restrictions on functions and specifications
- Appendix 9 Added and Enhanced Functions
  - Restricted functions of the CPU module
INDEX
REVISIONS
WARRANTY
TRADEMARKS

Mitsubishi Electric RJ71PB91V User's Manual

Mitsubishi Electric RJ71PB91V manual cover

Pages 298

Year 2017

Language(s)

of 298

Mitsubishi Electric RJ71PB91V Specification

The Mitsubishi Electric RJ71PB91V is a sophisticated interface module designed for seamless integration within industrial automation systems. This module is part of the MELSEC iQ-R series and is specifically engineered to facilitate communication between programmable logic controllers (PLCs) and PROFIBUS networks, a standardized fieldbus protocol widely used in industrial settings. The RJ71PB91V enables efficient data exchange by supporting PROFIBUS-DP, a high-speed communication protocol that allows for rapid and reliable information transfer.

This interface module is equipped with a robust set of features aimed at enhancing system performance and reliability. It is capable of handling a maximum of 125 slave devices, making it highly suitable for complex automation environments. The module supports a communication speed of up to 12 Mbps, ensuring high-speed data transmission and minimizing latency. With a compact form factor, it integrates seamlessly into existing setups without requiring significant space.

The RJ71PB91V is designed with user convenience in mind, featuring easy-to-use diagnostic and monitoring tools that aid in system maintenance and troubleshooting. It includes LED indicators for status and error monitoring, providing immediate visual feedback on network and module performance. Additionally, the module supports various configuration methods, including the use of the GX Works3 software, offering flexibility and ease of use for system integrators and operators.

Engineered to meet rigorous industrial standards, the RJ71PB91V delivers reliable performance in demanding environments, providing robust communication capabilities essential for modern industrial automation systems. Its compatibility with the MELSEC iQ-R series ensures a seamless integration process, enabling efficient and effective control across multiple industrial applications.

Mitsubishi Electric RJ71PB91V F.A.Q.

How do I configure the Mitsubishi Electric RJ71PB91V for initial setup?

To configure the RJ71PB91V for initial setup, connect it to your network, access the configuration interface via the software provided by Mitsubishi Electric, and follow the step-by-step wizard to set parameters like IP address, subnet mask, and other necessary settings. Ensure all devices in the network are properly addressed.

What are the common troubleshooting steps if the RJ71PB91V module is not communicating with other devices?

First, check the physical connections and ensure all cables are securely connected. Verify the module's LEDs for any error indications. Check the configuration settings, including IP address and subnet mask, to ensure they match with the network. Use diagnostic tools provided by Mitsubishi Electric to identify issues.

How do I perform a firmware update on the RJ71PB91V?

Download the latest firmware from the Mitsubishi Electric website. Connect to the RJ71PB91V through the configuration software, navigate to the firmware update section, and upload the new firmware file. Follow the on-screen instructions to complete the update process.

What maintenance practices should be conducted regularly on the RJ71PB91V?

Regularly check for firmware updates and install them. Inspect physical connections and clean any dust or debris from the module. Ensure the module is operating within specified environmental conditions, like temperature and humidity. Periodically back up configuration settings.

Can the RJ71PB91V be integrated with other brands of PLCs?

Yes, the RJ71PB91V can communicate with other brands of PLCs using standard communication protocols like Ethernet/IP or Modbus, provided the correct configuration settings are applied and compatible interfaces are used.

How do I reset the RJ71PB91V to factory settings?

To reset the RJ71PB91V to factory settings, locate the reset button on the module, press and hold it for a few seconds until the LEDs indicate a reset has been initiated. Note that this will erase all current configurations.

What is the maximum number of devices that can be connected to the RJ71PB91V?

The RJ71PB91V can support a network that includes up to 64 devices when used in a standard configuration. For larger setups, network segmentation or additional modules may be necessary.

How can I secure the communication on the RJ71PB91V module?

Implement security measures such as enabling password protection, using secure communication protocols like SSL/TLS, and regularly updating firmware to protect against vulnerabilities. Additionally, monitor network traffic for unauthorized access attempts.

What should I do if the RJ71PB91V module overheats?

Ensure the module is installed in a well-ventilated area. Check for dust or debris obstructing airflow and clean the module as necessary. Verify that the ambient temperature is within the recommended operating range. If overheating persists, consult Mitsubishi Electric support.

How do I diagnose network issues involving the RJ71PB91V?

Use the diagnostic tools within the Mitsubishi Electric configuration software to check network status and identify issues. Check for any error codes displayed on the module's interface, and ensure all devices on the network are properly configured and functional.