X116E1 1SBP260100R1001   AC31 system consists

Description

X116E1 1SBP260100R1001   AC31 system consists

The AC31 system consists of the series 30, 40, 50, and 90. This operating manual describes
the series 40 and 50.
The AC31 brings accessibility to beginners and experienced automation users alike, for any
application with 14 to approximately 1000 inputs / outputs and more, using the same set of
basic components.
From a compact machine fitted with a few automated functions to large installations spread over
hundreds of meter, and even kilometers, the AC31 can fit your requirements.
It is therefore possible to realize distributed applications throughout a site, a workshop, or a
machine where each component (input / output units, basic unit) is close to the sensors /
actuators. The whole setup is connected by a single twisted pair over which all information from
the sensors is sent after processing by the basic unit to the actuators via the remote modules.
Additional central units configured as slave can also be connected to this CS31 system bus.
In case of the series 40 and 50 the following communication interfaces are available, to extend
the AC31’s possibilities and integration with the company’s other automation systems:
MODBUS, ASCII, ARCNET, RCOM, AF100. The developments in this field are continual.

XE08B5

An ABB AC31 system always includes at least one AC31 basic unit. There are three types of basic
units:
– The 40 series basic unit, with a local interface for central inputs / outputs extensions
– The 50 series basic unit, with a local interface for central inputs / outputs extensions
and a CS31 system bus interface for decentralized extensions
– The 90 series basic unit, with a CS31 system bus interface for decentralized extensions
Each basic unit incorporates a specific number of digital inputs/outputs and in case of the series 90
occasionally analog inputs/outputs. It is possible, depending on the basic unit, to increase the
number of inputs / outputs, to add input / output extensions connected directly to the basic units or
remote input / output units via the CS31 twisted pair.

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