PROFINET, Documentation
8.6
Acyclic Reading and Writing of Records
8.6.1
General
The ILD1900-x-IE with PROFINET can be parameterized via acyclic demand data that are not transmitted cyclically. These acyclic
requirements data are organized in PROFINET in the so-called records.
A record is a contiguous block
- of one or more parameters,
- which can be accessed in read or write mode.
When writing or reading a record, you must fill the read or write request with AR, API, slot, subslot, index, and the read/write length.
8.6.2
I&M Records
PROFINET defines so-called Identification and Maintenance Records, which contain various device information. These
records are available in every PROFINET device.
The read and write request is addressed as follows:
Parameter
Length in bytes
AR
0
API
4
Slot
2
Subslot
2
Index
2
Length
4
The ILD1900-x-IE with PROFINET supports the I&M records 0 to 3.
optoNCDT 1900 / Profinet
Value
Permanently 0
Permanently 0
Permanently 0
Permanently 1
0xAFF0 – 0xAFF3
see Block length
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