
Busserv er S7
L
107Busserver S7 DE/EN 1.0
6.3.7 FC94 (FC Process Data, 2 words, CP)
Function for process data access
The function FC94 can be used for both consistent and inconsistent process da ta transfer.
Parameters Data type Possible values/meaning
FirstDriveDW IN: INT Byte offset of the first drive da ta word in the data exchange
DB (decimal)
DriveSend_DB IN: BLOCK_DB Data exchange DB for send jobs to the external PROFIBUS
communication processor (CP)
DriveRecv_DB IN: BLOCK_DB Data exchange DB for read jobs from the external
PROFIBUS communication processor (CP)
Enable IN: BOOL
TRUE Drive enabled
FALSE Drive inhibited
QSP IN: BOOL
TRUE Quick stop (QSP) active
FALSE Quick stop (QSP) not active
Reset IN: BOOL FALSEäTRUE TRIP reset executed
Setpoint1 IN: INT Setpoint process value (AIF-IN:W1)
ControlWord IN: WORD Control word according to DRIVECOM specification
• Bit0 ... Bit4 are hidden and cannot be written.
RDY OUT: BOOL
TRUE Drive is ready for operation
FALSE Drive is not ready for opera tion
TRIP OUT: BOOL
TRUE Drive signals TRIP
FALSE Drive does not signal TRIP
ActualValue1 OUT: INT Actual process value (AIF-OUT:W1)
StatusWord OUT: WORD Status word according to DRIVECOM specification
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