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Concept
Products:
AO-8, AO-V-8, Automation Server, DI-16, DO-FA-12, DO-FC-8, AS-P, PS-24V, RTD-DI-16, UI-16, UI-8/AO-4, UI-8/AO-V-4, UI-8/DO-FC-4
Functionalities:
Central IO , Hardware
Product version:
1.8, 1.9, 2.0, 2.1, 3.0, 3.1
10/12/2017
I/O Bus
The I/O bus is a common bus that delivers power, address information, and communication to all devices connected to the bus. The I/O bus is provided to the devices through the backplane in the terminal bases. The term I/O bus also denotes the chain of devices that are connected together.
I/O Bus Parts
The I/O bus consists of the following parts:
Power bus
Address bus
Communication bus
For more information, see I/O Bus Parts .
I/O Bus Restrictions
The I/O bus imposes restrictions on the number of devices that can be connected to the bus and what type of devices that are allowed on certain positions.
For more information, see I/O Bus Restrictions .
Terminal Bases
I/O Bus Parts
I/O Bus Restrictions