IFM Electronic AC402S, Programming Manual

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SmartPLC SafeLine AC4S with fieldbus interfaces
54
>
7.3.4 Fieldbus data
42399
The device tree offers direct access to the data that is transmitted between fieldbus and device.
Data that the fieldbus transmits/receives via the fieldbus.
→
Input and output data of the fieldbus interface
(→ S. 54 )
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
(→ S. 54 )
Consider validity of the interface data (
→
Validity of the interface data (
→ S.
51 ))!
>
Input and output data of the fieldbus interface
42601
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.
>
Outputs data of the AS-i slaves
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The area contains all data, the higher-level Fieldbus controller cyclically sends to the outputs of the
AS-i slaves via the fieldbus network. The data is structure like an AS-i network. The programmer can
access this data with symbols (recommended) or via IEC addresses.
If the output access of the device is set to "PLC", the programmer can use the data bundled in
this area to process the target values sent by the higher-level fieldbus controller to the
CODESYS Standard PLC.