Mitsubishi Electric QJ71E71 100 User's Manual

Mitsubishi Electric QJ71E71 100 manual cover
Pages 246
Year 1999
Language(s)
English en

Mitsubishi Electric QJ71E71 100 Specification

The Mitsubishi Electric QJ71E71 100 is an advanced Ethernet communication module designed for integration within the MELSEC-Q Series PLC systems. This module facilitates efficient and reliable network connectivity, enabling seamless data exchange across industrial automation setups. It supports 10/100 Mbps Ethernet communication and is compliant with the IEEE 802.3u standard, ensuring compatibility with a wide range of industrial network infrastructures.

The QJ71E71 100 module features an RJ45 connector for straightforward physical connections and supports both UDP/IP and TCP/IP protocols, providing flexibility for various network configurations. Its integrated IP address setup simplifies the configuration process, while the support for automatic IP addressing via DHCP enhances ease of deployment in dynamic network environments.

With a focus on reliability, the module offers robust error detection and recovery mechanisms, including automatic network recovery, which minimizes downtime and ensures consistent operational performance. It supports multiple communication methods, such as MELSOFT communication, socket communication, and MC protocol, catering to diverse application needs.

The module's design emphasizes ease of integration and maintenance, featuring diagnostic LEDs for quick status assessment and troubleshooting. It can handle up to 64 simultaneous connections, making it suitable for complex network topologies. Furthermore, the QJ71E71 100 supports data transmission with a maximum frame length of 1518 bytes, accommodating substantial data throughput demands.

The Mitsubishi Electric QJ71E71 100 Ethernet module is engineered for high-performance industrial applications, providing a reliable, versatile solution for network communication in automated systems. Its combination of speed, compatibility, and robust features makes it an essential component for modern industrial network infrastructures.

Mitsubishi Electric QJ71E71 100 F.A.Q.

How can I configure the IP address for my QJ71E71-100 module?

To configure the IP address, access the PLC parameter settings in GX Works2, navigate to the Network Configuration, and set the IP address under the Ethernet tab for the QJ71E71-100 module.

What should I do if the QJ71E71-100 module is not communicating with other devices on the network?

First, check the physical connections and ensure the Ethernet cables are properly connected. Verify the IP settings and subnet mask. Use the ping command to test connectivity.

How can I update the firmware of the QJ71E71-100 module?

Download the latest firmware from the Mitsubishi Electric website. Use GX Works2 to connect to the module and select the firmware update option in the tool menu.

What LED indicators are present on the QJ71E71-100 module and what do they signify?

The QJ71E71-100 module has several LEDs, including Power, Link, and Error. The Power LED indicates the module is powered, Link signifies network connectivity, and Error indicates a fault condition.

How can I troubleshoot a persistent error LED on the QJ71E71-100 module?

Check the error code in the diagnostics tool of GX Works2. Verify network settings, ensure firmware is up to date, and check for hardware faults like cable issues.

What is the maximum data transmission speed supported by the QJ71E71-100 module?

The QJ71E71-100 module supports a maximum data transmission speed of 100 Mbps.

Can the QJ71E71-100 module be used for remote monitoring applications?

Yes, the QJ71E71-100 module supports remote monitoring through TCP/IP communication protocols, allowing integration with SCADA systems.

How do I perform a factory reset on the QJ71E71-100 module?

To perform a factory reset, access the module settings in GX Works2, select the reset option, and follow the prompts to restore default settings.

What maintenance is required for the QJ71E71-100 module to ensure optimal performance?

Regularly check and clean the module to prevent dust accumulation, ensure firmware is up to date, and inspect Ethernet cables for wear and tear.

How can I secure the communication of the QJ71E71-100 module over the network?

Implement VLANs, enable MAC address filtering, and use network firewalls to restrict unauthorized access. Consider using VPNs for encrypted communication.