____________________________________________________________________________________________________________
V2
AC500 Hardware
1-2 System
data
AC500 / Issued: 05.2007
Wiring...................................................................................................................................................... 1-32
Number of user data, bus cycle time and data security ......................................................................... 1-32
Replacement of modules on the I/O bus ............................................................................................... 1-33
Serial interfaces of the CPU Terminal Bases
................................................................................ 1-33
Interface standard ................................................................................................................................... 1-33
Technical data......................................................................................................................................... 1-33
Serial interface COM1
.......................................................................................................................... 1-33
CS31 system bus
...................................................................................................................
1-35
Connection of the AC500 CPU to the CS31 system bus using COM1 of the Terminal Base ............... 1-35
Wiring...................................................................................................................................................... 1-36
Bus topology ........................................................................................................................................... 1-36
Earthing................................................................................................................................................... 1-38
Number of user data, bus cycle time and data security ......................................................................... 1-39
Replacement of modules on the CS31 system bus ............................................................................... 1-39
Serial interface COM2
...........................................................................................................
1-40
FieldBusPlug / FBP
.............................................................................................................................. 1-42
Wiring...................................................................................................................................................... 1-42
Bus topology ........................................................................................................................................... 1-42
Modbus
.................................................................................................................................................... 1-43
General ................................................................................................................................................... 1-43
Bus topology ........................................................................................................................................... 1-43
Number of user data, bus cycle time and data security ......................................................................... 1-43
PROFIBUS
.............................................................................................................................................. 1-44
ISO/OSI model........................................................................................................................................ 1-44
Typical Field Bus Topologies.................................................................................................................. 1-45
Overview of transferred data .................................................................................................................. 1-46
PROFIBUS DP-V0 <---> PROFIBUS DP-V1 .......................................................................................... 1-46
Wiring...................................................................................................................................................... 1-49
Bus line ............................................................................................................................................... 1-49
Cable lengths ...................................................................................................................................... 1-49
