Process historian 2014 SP1 Update from version 2014 to 2014 SP1, data carrier without license, use only in conjunction with a valid license for Process historian 2014, software and documentation on DVD, Class A, runs under Windows Server 2008 R2+SP1 (64-bit) / Server 2012 (64-bit) The SIMATIC Process Historian is a cross-product and cross-version real-time database as a central data interface to the company management level. It serves as a central long-term archive for any amount of process data and messages from different data sources.