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ifm
Programming Manual AS-i Gateway AC14 (4.2.x)
12/2017
Operation
Operating states of the PLC
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8.2
Operating states of the PLC
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This section provides information about the operating states of the device and the states of the PLC of
the device as well as information about the states of the applications.
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8.2.1
Operating mode of the PLC
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The PLC of the device can be operated in the following modes:
Offline mode
In the offline mode the user is logged out of the PLC or there is no connection between CODESYS
and the PLC (e.g. connection loss).
Online mode
In the online mode the user is logged in to the PLC.
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8.2.2
States of the PLC application
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The applications saved on the device are executed independently in separate tasks. A application can
have the following states:
Unload
No application is saved on the PLC.
RUN
The application is executed (cyclically processed).
STOP
The application is not executed.
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Display operating state of the application
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To display the current operating state of the PLC choose one of the following options:
CODESYS:
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In the device tree: Node of the application indicates the current state.
OR:
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In online mode the CODESYS status bar shows the current state of the application.
GUI / web interface of the device:
►
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►
Select the [Applications] tab.
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The page displays the operating states of the PLC applications saved on the device.
