Leroy-Somer digitax st User Manual page 44

Table 8.10 shows the data structure of a PPO 4 Word response that will be returned by
SM-PROFIBUS DP-V1.
Table 8.10 PPO 4 Word IN data structure
IN data word
IN word 0
IN word 1
IN word 2
IN word 3
The RESPONSE ID indicates the success or otherwise of the requested transaction.
Table 8.11 lists the possible RESPONSE ID codes.
Table 8.11 RESPONSE ID codes
RESPONSE
ID
0
1
2
3
4
5
6
7
8
If RESPONSE ID 7 has been received, the error code can be read from word 3. This will
indicate the reason why the TASK ID request failed (see Table 8.12).
Table 8.12 PPO 4 Word error codes
ERROR
CODE
0
1
2
3
18
44
b15-b12 b11
RESPONSE ID 0
PARAMETER
Function
No task
Fieldbus specific
Fieldbus specific
Not implemented
Transfer parameter
value (16-bit)
Transfer parameter
value (32-bit)
Transfer last parameter
reference
Error - TASK ID could
not be executed
Error - read only
parameter
Error
Invalid menu
Parameter is read only
Value out of range
Invalid parameter /
menu
Parameter error
www.leroy-somer.com
Function
b10-b8
MENU
DATA HIGH word
DATA LOW word
Description
No non-cyclic transaction active
Returns a 16-bit data value from the request parameter
value specified by TASK ID 6, or the successful change
parameter value (16-bit) specified by TASK ID 7.
Returns a 32-bit data value from the request parameter
value specified by TASK ID 6, or the successful change
parameter value (32-bit) specified by TASK ID 8.
Returns the highest parameter for the menu specified by
request last parameter reference, TASK ID 9.
The previously specified TASK ID could not be completed.
Word 3 will return an error code to indicate the reason for
the TASK ID failure (see table below).
Target parameter specified by TASK ID 7 or TASK ID 8 is
read only, and cannot be modified.
Description
The specified menu does not exist.
The specified parameter is read only, and cannot be
written to.
The specified data value is out of range for the parameter.
The specified parameter does not exist.
No last parameter information available.
SM-PROFIBUS DP-V1 User Guide
b7-b0
Issue : a