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Expanded System Configuration Section 2-5
CompoBus/S
CompoBus/S is a high-speed ON/OFF bus for remote I/O communications.
Connecting a CompoBus/S Master Unit to the network allows remote I/O
communications between the PLC and Slaves. High-speed communications
are performed with 256 points in a cycle time of 1 ms max. 
PROFIBUS-DP
PROFIBUS (PROcess FIeldBUS) is an open fieldbus standard for a wide
range of applications in manufacturing, processing, and building automation.
The Standard, EN 50170 (the Euronorm for field communications), to which
PROFIBUS adheres, ensures vendor independence and transparency of
operation. It enables devices from various manufacturers to intercommunicate
without having to make any special interface adaptations.
Messages
Remote I/O
DeviceNet Slaves 
DeviceNet 
Master Unit
DeviceNet 
Master Unit
CompoBus/S Master Unit
CompoBus/S
Remote I/O
PROFIBUS-DP
PROFIBUS-DP Master Unit
Remote I/O