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32 S1A10386 10/2009
Integration of the ATV312 in a PROFIBUS DP network
controlled by a Simatic S7©
PLC IO image / Altivar 312 DP slave mapping
With the Altivar 312 DP slave module:
•The 1
st
slot defines the addresses of the PKW area, used for parameters management.
•The 2
nd
slot defines the addresses of the PZD data (control and status of the drive).
The configuration dialog box enables you to define the PEW and PAW assigned to the Altivar 312.
The table below shows this configuration and its pending drive's parameters:
PZD area
(1)These values are related to the example in the previous page
PKW area
* : The description of the Altivar 312 parameter addresses can be found in the communication variables spreadsheet available on
Schneider- electric.com.
** : Not significant here: The Altivar 312 doesn't manage 32bits integer values.
Altivar 312
parameter
S7-315 PEW
IO memory (1)
S7 - 315 PAW
IO memory (1)
CMD %PAW264
LFRD %PAW266
ETA %PEW264
RFRD %PEW266
Altivar 312
parameter
S7-315 PAW
IO memory
S7 - 315 PEW
IO memory
Parameter logic address
(Modbus address*)
%PAW256
Response code:
0 : No request
1 : Read
2 : Write
%PAW258
or
%PAB259
Value to write
if write request
%PAW260 **
%PAW262
Parameter logic address
(Modbus address*)
%PEW256
Response code:
0 : No request
1 : successful Read
2 : successful Write
7 : Error report
%PEW258
or
%PEB259
Parameter value
if the request
was successful.
%PEW260
%PEW262