Data Exchange - WAGO LONWORKS 750-319 Manual

Attention
The I/O module data must be copyed into the PFC variables via the IEC
61131-3 application program, in order to be processed by the Neuron-Chip.
Note
A process image restructuring may result if a node is changed or extended. In
this case the process data addresses also change in comparison with earlier
ones. In the event of adding modules, take the process data of all previous
modules into account.

3.2.6 Data exchange

With LON, the transmission and exchange of data is made using objects net-
work variables.
A network variable (NV) is a type based variable in the Neuron-C program-
ming language for the realisation of logical communication channels between
LON
using the network output variable (nvo), if data is transferred from the net-
work to a node this is made using the network input variable (nvi).
For the exchange of I/O data the coupler provides an assigned value of net-
work input and output variables. This number depends on the selected network
interface of the Neuron-C application TOPLON
For the access on the PFC variables data, in TOPLON
bol-file (Sym-file) will be imported.
This file contents all defined IEC 61131-3 variables and will be created in the
programming software WAGO-I/O-PRO 32. After the import in WAGO
TOPLON
according IEC 61131-3 are automatically available in the plug-in for further
processing.
i
More information
Please find a detailled description on handling of the IEC 61131-3 program-
ming software WAGO-I/O-PRO 32 in the respective manual (Item no.: 759-
120/000-002).
The Software configuration handling in the plug-in WAGO TOPLON
is extensive explained in the corresponding manual to this plug-in (Item no.:
759-123/000-002 part 5).
Modular I/O System
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L W
ON ORKS
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- nodes. If data is transferred from a node to the network, this is made
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PRIO all defined boolean and other PFC input and output variables
Fieldbus coupler/controller
Review
®
PRIO.
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PRIO a so-called Sym-
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PRIO