MELSEC-Q Ethernet Interface Module Function Upgrade Technical Bulletin

This technical bulletin details function upgrades for MELSEC-Q series Ethernet interface modules (models QJ71E71-100, QJ71E71-B5, QJ71E71-B2) with serial numbers starting 07082 or later. Key enhancements include MC protocol 4E frame support for message identification via serial numbers, increased data link instruction length (up to 960 words), and the ability to send character strings in e-mail main text via the PLC CPU monitoring function.