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ifm
Programming Manual AS-i Gateway AC14 (4.2.x)
12/2017
Programming
Access input and output data
>
7.3.4
Fieldbus data
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The device tree offers direct access to the data that is transmitted between fieldbus and device.
1
Data that the fieldbus transmits/receives via the fieldbus.
→
Input and output data of the fieldbus interface
2
Output data of the AS-i slaves at AS-i master 1 and AS-i master 2 that is transmitted by the higher-level fieldbus
PLC.
→
Outputs data of the AS-i slaves
Consider validity of the interface data (
→
Validity of the interface data
(
>
Input and output data of the fieldbus interface
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The input and output data of the fieldbus interface os transmitted in cycles of 120 words each. The
programmer can access this data via IEC addresses.
To access the input and output data of the fieldbus interface:
►
Device window: In the project tree, double-click on [FieldBusData_]
>
Editor window shows a structured list of the inputs and outputs:
►
In column [Variable]: Mouse click on to make individual variables visible.
