software on CD-ROM: 2 Drive ES PCS7 APL V9.0 SP3 function block library for integration of drives in the process control system PCS 7 CD-ROM in 5 languages with electr. documentation; upgrade V6.X/V7.X/V8.X/V9.X > V9.0 SP3; for existing single license drive ES PCS7 V6.X/V7.X/V8.X/ V9.X requires at least SIMATIC PCS 7 V9.0