IEC 62453-315:2009+A1:2016 provides information for integrating Modbus TCP® and Modbus Serial Line® protocol support into FDT based systems. This bilingual version (2015-06) corresponds to the English version, published in 2009-07. This part, in conjunction with the other parts of the first edition of the IEC 62453 series cancels and replaces IEC/PAS 62453-1, IEC/PAS 62453-2, IEC/PAS 62453-3, IEC/PAS 62453-4 and IEC/PAS 62453-5 published in 2006, and constitutes a technical revision. THIS CONSOLIDATED VERSION CONSISTS OF THE FIRST EDITION (2009) AND ITS AMENDMENT 1 (2016). THEREFORE, NO NEED TO ORDER AMENDMENT IN ADDITION TO THIS PUBLICATION.