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Profibus PROFILES—PPO Support Specification
6.4 Buffer Memory Details
The following indicates the buffer memory details of the Profibus profiles.
Name
Bit
Description
PKW
PKE
PNU
0 to 10 PNU number
SPM
11
Not used (0 is set)
AK
12 to 15
[Command request]
0
: No task
1
: Parameter value is requested (read request)
2
: Parameter value (word) is changed (write request)
3 to 5
: Non-supported
6
: Parameter value (array) is requested (read request)
7
: Parameter value (array word) is changed (write request)
8 to 15
: Non-supported
[Command response]
0
: No response
1
: Parameter value (word) is transferred.
2 to 3
: Non-supported
4
: Parameter value (array word) is transferred.
5 to 6
: Non-supported
7
: Command execution error (error number is stored into PWE)
8 to 15
: Non-supported
IND
0 to 7
Reserved area for extension (0 is set)
8 to 15
Sub-Index number
At command request, set this number
when AK = 6 or 7.