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7
EtherCAT communication
7.2
Transmitting process data
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Lenze · I/O system 1000 · Reference Manual · DMS 5.0 EN · 09/2016 · TD17
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7.2.1
Access to the I/O area
SDO access can be used for read-only access to the object directory's input and output data.
Input data
When accessing the input area of an I/O compound module, addressing takes place via index I-6000
+ EtherCAT slot no. Subindices give you access to the corresponding input data. The relevant module
description contains the subindex assignment.
Output data
During read-only access to the output area of an I/O compound module, addressing takes place via
index I-7000 + EtherCAT slot no. Subindices give you read-only access to the corresponding output
data. The relevant module description contains the subindex assignment.
Index
Subindex
Name
Type
Attr.
Default
Meaning
I-6000
...
I-603F
0x00
Input data
Unsigned8
ro
Number of input data
subindexes for the
corresponding EtherCAT slot no.
0x01
0x02
...
ro
ro
Input data (see module
description)
Index
Subindex
Name
Type
Attr.
Default
Meaning
I-7000
...
I-703F
0x00
Output data
Unsigned8
ro
Number of output data
subindexes for the
corresponding EtherCAT slot no.
0x01
0x02
...
ro
ro
Output data (see module
description)