Richard Johnson - Modbus Protocol Engineering

"Modbus Protocol Engineering"

"Modbus Protocol Engineering" provides a definitive and comprehensive exploration of the Modbus protocol, a foundational pillar of industrial communications. The book meticulously examines Modbus from its origins and standardization to its pivotal role in modern automation environments. Through detailed chapters on system architecture, protocol layering, addressing schemes, and device identification, readers will gain a deep understanding of the protocol’s core concepts and how it seamlessly integrates with the OSI model to facilitate robust industrial networking.

The text moves from theoretical constructs into detailed, practical guidance covering Modbus communication modes, including RTU, ASCII, TCP/IP, and even alternative transports such as UDP. It goes further to dissect physical layer topologies, electrical considerations, and software implementation techniques. Rich coverage of application-layer design—standard and custom function codes, data mapping, error handling, and security—ensures that engineers and developers are equipped to design, deploy, and optimize Modbus networks for reliability, scalability, and efficiency. Dedicated sections on performance tuning, scalability, and high-availability architectures provide essential insights for large-scale and mission-critical deployments.

Security and interoperability are addressed with rigor, offering strategies for defending Modbus environments against modern threats and facilitating integration with SCADA, DCS, and IIoT systems. The book rounds out its technical deep-dive with advanced topics, including wireless and edge computing adaptations, AI-driven analytics, open-source initiatives, and emerging security standards. Enriched with real-world case studies and actionable best practices, "Modbus Protocol Engineering" is an essential resource for automation engineers, protocol designers, and industrial IoT practitioners seeking both foundational knowledge and advanced expertise.