Allocation Of The Input And Output Data - WAGO -I/O-SYSTEM 750 Technical Description, Installation And Configuration

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.
Master, e. g. PLC
Fig. 3.1.5-7: Allocation of the input and output data
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.
WAGO-I/O-SYSTEM 750
PROFINET IO
CPU
Master
Addresses
I
Allocation list
I
O
O
byte-oriented allocation,
generated on a PC
750-340
Allocation list
I I
PROFINET
O O
PROFINET
slot-oriented
allocation,
generated automatically
by the Coupler
PROFINET IO 750-340
Process Image
1 2 3 4 5 6 7
DI DI AI AI DO DO AO
402 402 452 452 504 504 550
I
O
• 63
8 9
AO
550 600
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