1 response after a correct read request, Response after a correct read request, Communication manual 8400 motec profinet – Lenze E84DGFCR User Manual
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Communication manual 8400 motec PROFINET
Parameter data transfer
Reading parameters from the controller
9.2.1
Response after a correct read request
Response head
Parameter format
Note!
• Responses to read requests do not contain parameter attributes and indices/
subindices.
• When a multi-parameter read request is transmitted, the parameter format
and the parameter value are repeated "n" times, "n" being the number of
parameters requested.
Byte 1
Byte 2
Byte 3
Byte 4
Request reference
(mirrored)
Response identification
Axis
(mirrored)
Number of indices
Field
Data type
Values
Request reference
U8
Mirrored value of the parameter request
Response identification
U8
0x01: Parameters read
Axis
U8
0x00 or 0x01
Number of indices
U8
0x"n" (n = number of parameters requested)
Byte 5
Byte 6
Format
Number of values
Field
Data type
Values
Format
U8
0x02: Integer8
0x03: Integer16
0x04: Integer32
0x05: Unsigned8
0x06: Unsigned16
0x07: Unsigned32
0x09: Visible string
0x0A: Octet string
0x40: Zero
0x41: Byte
0x42: Word
0x43: Double word
Number of values
U8
• 0x01
• Number of requested subindices. (If there is more
than one subindex, only the parameter value is
repeated.)
• For string codes, the number of characters is entered
here.