Siemens SINUMERIK 840Di Function Manual page 1114

Detailed description
2.12 Block descriptions
Warning
If several block calls (FC 15, FC 16, FC 18) are programmed for the same axis/spindle in the
PLC user program, then the functions concerned must be interlocked by conditional calls in
the user program. The conditional call of a started block (parameter Start or Stop = TRUE)
must be called cyclically until the signal state of output parameter Active or InPos changes
from 1 to 0.
Declaration
FUNCTION FC 16: VOID
VAR_INPUT
END_VAR
VAR_OUTPUT
END_VAR
Description of formal parameters
The table below lists all formal parameters of the PART_AX function:
Signal
Start
AxisNo
IC
DC
2-202
Start:
AxisNo:
IC:
DC:
Minus:
Plus:
Pos:
FRate:
InPos:
Active:
StartErr:
Error :
I/O Type
I Bool
I Int
I Bool
I Bool
//PART_AX
BOOL ;
INT ;
BOOL ;
BOOL
BOOL ;
BOOL ;
INT ;
REAL;
BOOL ;
BOOL ;
BOOL ;
BOOL ;
Value range
1 - 31
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Remarks
No. of axis to be traversed
= Absolute direction input
1 = Incremental direction input
= Predefined direction
= Shortest path
Power Line Basic PLC Program (P3)