ABB AC500 - Examples for Decentralized Systems Connected by Network

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G1 Introduction to AC500 1-96 AC500 / Issued: 07.2006
Examples for decentralized systems connected by network
On principle, the configuration of decentralized systems connected by network is done in two steps:
• The CPU has to be informed about which couplers are assigned to it (internal and/or external
couplers).
• The couplers have to be informed about which peripheral devices are connected to them.
This is done using the tool SYCON.net (opened via the tab Resources -> Tools -> SYCON.net). This tool
is also used to create the variables lists for the individual peripheral devices. The symbolic names
created therein are directly (online) made available for the programming software. Thus, these created
variables are located in the Global Variables folder.
Example with an AC500 CPU PM581 as PROFIBUS DP Master and a DC505-FBP as
PROFIBUS DP slave with a FieldBusPlug PDP22-FBP
DC532DC505 AX522
PDR11-FBP.150
DC505-FBP + DC532 + AX522
AC500 PM581-ETH + CM572-DP as
-FBP
AX522DC532PM581CM572
master + DC532 + AX522
PDA11-FBP.050
PDP22
+/– 24 V DC
+
–
24 V DC
+
–
24 V DC
from COM2/PLC to PC
+/– 24 V DC
Figure: Example with an AC500 CPU as PROFIBUS DP master and a DC505-FBP as PROFIBUS DP
slave. Note: “to PC” – either COM1 interface of PC, directly, or corresponding COM interface of PC,
allocated via USB RS-232 converter.
The following example will guide you through the installation and the configuration of a small PROFIBUS
DP fieldbus using an AC500 PLC as PROFIBUS DP master and a S500-FBP remote I/O station with a
modular FBP.