SIMATIC S7-1500 Failsafe Software Controller CPU 1507S F single license for 1 installation, runtime software class A, software, documentation and license for download, 1 language (en), executable under SIMATIC Industrial OS V4; reference hardware: SIMATIC IPC BX-59A, SIMATIC IPC BX/PX-39A (PRO) -- consignee email address required for delivery