PROFIBUS-DPV1 functions
153
11/04 MN01219002Z-EN
Addressing and length of the object
Please use the following information for addressing of the
object:
• API is equal to 0 (only required for class 2 DPV1 master),
• Slot number is equal to 0,
• The index is equal to 21.
The length of the data to be read or written is 9 Octets.
Please ensure that no other lengths are entered when the
Write service is called or shorter lengths are read when the
Read service is called, as otherwise you will receive a fault
indication.
Variable definitions (example) for the object
According to IEC 61131-3, you define the following variable
(data module):
Name Data type
DMI_output assignment STRUCT
Output_0 BYTE or USINT
Output_1
Output_2
Output_3
Output_4
Output_5
Changeover_time
WORD or UINT
Switching_element BYTE or USINT
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