Siemens SIMATIC S5 Manual page 210

If the machining program is started from the PC, the parameter TBIT is set by FBI 64, If the ma-
chining program is interrupted, the parameter TBIT is reset again by FB1 64. The same conditions
apply for resetting the bit as for changing the axis status from running to finished. If the machin-
ing program is continued by the PC with an enter command, the parameter TBIT is set again by
FBI 64 and reset after the next interruption or on completion of the machining program.
start
Start from PC
Interrupt
from PC
Enter
from PC
If a machining program which was started by the PG is interrupted by the PC, the parameter
r
Start from PG
Stop from PC
Enter from PC
Error 65
Note
I
If an interrupted machining program is continued again, it is treated from this point
onwards as if it had been started via the interface from which the enter command
was sent to the module. This means that the TBIT parameter is not set if an inter-
L
rupted machining program is continued again from the PG.
interrupt
interrupt
I
I
abort
interrupt
The Standard Function Block FB164
continue
r
H
Machining
continue
1
Machining program
I
program completed
completed
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