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6.7
Process Data Info
6.7.1 Description
Process data information informs about the structure of the
input and output data.
6.7.2 ISDU
Name
Index
Subindex
Access
Length
Data Type Data Storage Default
Process Data Input
Descriptor
0x000E (14)
0
R
Default: 30 bytes
CCM: 33 bytes
UINT8[]
n/a
–
Process Data
Output Descriptor
0x000F (15)
0
R
Default: 30 bytes
CCM: 30 bytes
UINT8[]
n/a
–
Tab. 6-25: Process data info and configuration – ISDU
PD Description
This parameter is used to specify the structure of the
currently selected process data profile for input and output
data. The individual process data variables are described.
The total list is accessible via subindex 0, a single entry is
possible using a specific subindex. Subindex 1
corresponds to the
least significant
(or the element most
recently transferred in the process data stream). When
reading out the entire list, this element is transferred first.
The length of the list is dependent on which process data
profile is selected. A single element has a length of
three bytes.
Byte number
Contents
Values
Byte 1
Data type
0: OctetStringT
1: Set of BoolT
2: UIntegerT
4: Float32T
5…255: reserved
Byte 2
TypeLength
0…255 bits
Byte 3
Bit offset
0…255 bits
Tab. 6-26: Process data info and configuration – PD Description
6
System Functions (continued)
BIS M-4 _ _ -082-401-07-…
Industrial RFID-System BIS M
Содержание BIS M-408-082-401-07-S4
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