SIMATIC S5, BETRIEBSSYSTEMMODULF. S5-115U,CPU 944B M. 3964 RSINGLE LICENSE F.1 INSTALLATIONKLASSE A, REFERENZ-HW:S5-115U (CPU942,943,944,944BSIMATIC S5, OPERATING SYS.MODULF. S5-115U,CPU 944B M. 3964 RSINGLE LICENSE F.1 INSTALLATIONCLASS A, REFERENCE-HW:S