
Busserv er S7
L
104 Busserver S7 DE/EN 1.0
6.3.4 FC91 (FC Process Data, 3 words)
Function for process data access
Consistent process data transfer is a prerequisite for using this function!
Parameters Data type Possible values/meaning
EA_Address IN: INT I/O address of the process data channel
• e. g. 1008
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 FALSE äTRUE TRIP reset executed
Setpoint1 IN: INT Setpoint process value (AIF-IN:W1)
Setpoint2 IN: INT Setpoint process value (AIF-IN:W2)
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)
ActualValue2 OUT: INT Actual process value (AIF-OUT:W2)
StatusWord OUT: WORD Status word according to DRIVECOM specification
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