SmartPLC DataLine with EtherNet/IP device interface
138
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8.7
Fieldbus EtherNet/IP
Content
Fieldbus objects ....................................................................................................................................138
Fieldbus parameters .............................................................................................................................139
Device-specific parameters ..................................................................................................................140
Cyclic data ............................................................................................................................................160
Acyclic data ..........................................................................................................................................185
EtherNet/IP projection software: Programmers' notes .........................................................................191
12469
Information about EtherNet/IP:
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8.7.1
Fieldbus objects
41516
EtherNet/IP is based on the Common Industrial Protocol (CIP). CIP encloses services and applications
in so-called object classes. Each object class has certain features (attributes) and defined interfaces
which can be used to access the functions of the object instance.
The AC1423/24 uses the following object classes:
Assembly instance objects
for the transmission of
device and EtherNet/IP parameters (
→
Parameter data
(
Cyclic process data, diagnostic data (
→
Cyclic data
)
Manufacturer-specific objects
for the transmission of acyclic data (
→
Acyclic data
(
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Parameter data
41784
The paramater data is transfered via the Configuration Assembly Object:
Object
class
[dec]
Instance
[dec]
Attribute
[dec]
Content
Access
r = read
w = write
max.
no. of
words
4
175
3
Parameter data (module configuration, device-specific parameters)
r/w
122
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Cyclic data
41570
Cyclic data is transferred in dynamic assembly objects:
Object
class
[dec]
Instance
[dec]
Attribute
[dec]
Content
Access
r = read
w = write
max.
no. of
words
4
100
3
Cyclic data from AC1423/24 to the I/O scanner (EtherNet/IP slots 1, 3, 5,
7, 9, 10, 13, 14)
r
max.
248
4
150
3
Cyclic data from the I/O scanner to AC1423/24 (EtherNet/IP slots 2, 4, 6,
8, 11, 12, 15)
r/w
max.
248
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