Technical data

Cancelling the
breakpoint
If a specified breakpoint has not yet been reached, you can cancel it
by pressing the break key on the PG. The CPU then changes to the
WAIT STATE. You can then select a new breakpoint or call
PROGRAM TEST END.
Aborting the function If you call the PROGRAM TEST END function during program
execution, in the WAIT STATE and in the STOP MODE, you can
terminate the function. The CPU goes to the STOP mode (or remains
in the STOP mode). The STOP LED flashes slowly. BARBEND is
marked in the control bits. Following this you must perform a COLD
RESTART.
If an interface error (break on the PG cable) or NAU occurs during the
PROGRAM TEST function, the function is terminated as described
above.
Nesting When the PROGRAM TEST function is active, other program
processing levels can be inserted after the WAIT STATE is exited.
When the operation is processed at the breakpoint and if a different
program processing level is called at this point (e.g. an error OB, a
process interrupt or a time-driven interrupt) this is inserted and
completely processed only when the WAIT STATE is exited again.
Note
The data are read at the operation boundary and output there.
Program processing levels which may have been inserted after
this point are not yet processed.
The sequence of the "program test" function is illustrated in Fig. 11-1.
11
PG Functions
CPU 928B Programming Guide
C79000-B8576-C898-01
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