Festo Контроллеры двигателя SFC-LAC User Manual
Page 42
1. System summary
1−20
Festo GDCP−SFC−LACI−DN−EN en 0812NH
Object model
In DeviceNet, data are accessed via objects. Each DeviceNet
station has one or more objects of various classes. An object
is an instance of a class:
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Standard classes describe e.g. basic features, the
communication behaviour or parameters of individual
channels of a slave.
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Manufacturer−specific classes describe device−specific
properties or parameters.
Device profile
Device profiles define the minimum available objects and
communication functions for the specific device types. The
SFC−LACI corresponds to the DeviceNet specification of the
device profile Communication Adapter" (device type number
000Ch).
Predefined connection
For simple slave devices, predefined master/slave
connections (Predefined Masterā/āSlave Connection Sets")
can be used; these simplify the transmission of tI/O data
between the higher−order controller (master) and the
decentralised peripheral devices (slaves). The SFC−LACI−DN
works according to the specification Predefined connection
set, Group 2 slave only".