Inhaltsverzeichnis
12.4.6
USS-Zustandscodes ................................................................................................................. 654
12.4.7
12.5
Modbus-Kommunikation ........................................................................................................... 659
12.5.1
12.5.2
Modbus TCP ............................................................................................................................. 662
Verbindungen............................................................................................................................ 676
12.5.3
Modbus RTU ............................................................................................................................. 678
12.5.3.1 MB_COMM_LOAD .................................................................................................................... 679
12.5.3.2 MB_MASTER ............................................................................................................................ 682
12.5.3.3 MB_SLAVE ............................................................................................................................... 689
12.6
12.6.1
Anschluss an ein GSM-Netz ..................................................................................................... 698
12.6.2
Anwendungen des CP 1242-7 .................................................................................................. 699
12.6.3
12.6.4
Zubehör ..................................................................................................................................... 702
12.6.5
13
13.1
14
Online- und Diagnose-Tools .................................................................................................................. 717
14.1
Status-LEDs .............................................................................................................................. 717
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
14.10
14.10.4.1
14.10.4.2
14
S7-1200 Automatisierungssystem
Systemhandbuch, 04/2012, A5E02486681-06