Any book you have. I am new in this field and looking forward to undestand it. I have CCNA and master of control engineering but I don't have a clear idea about the DCS.
may be this book will help u:
Distributed Embedded Control Systems: Improving Dependability with Coherent Design (Advances in Industrial Control)
by Matjaz Colnaric, Domen Verber, Wolfgang A. Halang
hey everybody i have worked on a DCS , I have designed a complete DCS system so if any of you want to work on DCS System than Than you must have an experience of Designing GUI , connecting Databases with GUI and instrumentation Knowledge. Some how you also have knowledge of networking ,,,,, moreover practical knowledge works.