47
Profibus PROFILES—PPO Non Support Specification
7.4 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 (Together, the PNU and the IND define which data word is being
accessed.)
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 15
: Non-supported
[Command response]
0
: No response
1
: Parameter value (word) is transferred.
2 to 6
: Not-used
7
: Command execution error (error number is stored into PWE)
8
: No operation change rights
9 to 15
: Not-used