PROFINET IO 750-340
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63
Process Image
WAGO-I/O-SYSTEM 750
PROFINET IO
3.1.5.2
Allocation of the Input and Output Data
The process data is exchanged via the PROFINET IO using the higher ranking
controls. A maximum of 320 bytes of output data (including all IOPS and
IOCS) can be transferred from the I/O controller to the bus coupler. The bus
coupler sends a maximum of 320 byte of input data (including all IOPS and
IOCS) to the I/O controller.
When configuring a node, the individual modules are configured in
accordance with their physical arrangement (slot orientated). These modules
can be taken over from a hardware catalog of the configuration tool. All
specific information on the relevant modules is contained in the associated
GSD file.
402
DI
402
452
452
504
504
550
550
600
1
2
3
4
5
6
7
8
9
750-340
DI
AI
AI
DO
DO
AO
AO
PROFINET
PROFINET
I
I
O
O
I
O
O
I
I
O
Fieldbus
Interface
CPU
slot-oriented
allocation,
generated automatically
by the Coupler
byte-oriented allocation,
generated on a PC
Allocation list
Allocation list
Master, e. g. PLC
Master
Addresses
Fig. 3.1.5-7: Allocation of the input and output data
g034003e
In productive data exchange, one or two byte IOXS process data qualifiers are
available for each configuration module providing information of the validity
of the module data. The process data qualifiers are an integral part of the
maximum length of the telegram of 320 bytes and must therefore be
considered when mounting the modules.
