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G1  Introduction to AC500  1-36  AC500 / Issued: 07.2006 
Assembling the system 
 WARNING 
The AC500 modules are not designed for removal or insertion under power. 
Because of unforeseeable consequences, it is not allowed to plug or unplug 
modules with the power being ON. 
 
Disconnecting the FBP or any powered modules while energized in a 
hazardous location could result in an arc, which could create a flammable 
ignition resulting in a fire or explosion. 
 
Be sure that power is removed and that an area has been thoroughly checked 
to insure that flammable materials are not present prior to proceeding. 
Using S500 I/O Modules 
The S500 I/O modules could be used either directly connected to an AC500 CPU (central expansion) or 
together with an FBP Interface Module DC505-FBP + an FBP (PROFIBUS DP, DeviceNet, etc.) as 
decentralized expansion. 
DC532DC532PM581CM577CM572
 
Figure: S500 I/O modules directly connected to an AC500 CPU (central I/O expansion)