
7. WRITING, READING, AND VERIFYING
THE SEQUENCE PROGRAM AND
PMC PARAMETER DATA
B–61863E/15
PMC PROGRAMMER (CRT/MDI)
568
CAUTION
The sequence program can be output while the ladder is
being executed, but the output speed is low. When the
sequence program is input while the ladder is being
executed, the execution of the ladder is automatically
stopped.
Conventionally, C programs have been managed together with ladder
programs. For this reason, when only a ladder program is to be modified
as shown in Fig. 7.1.1 (a), the program linked with a C program needs to
be replaced.
With the FANUC Series 16i/18i/160i/180i, ladder programs and C
programs are managed separately. So, each program can be edited and
replaced independently of the other programs as shown in Fig. 7.1.1
(b).
Ladder
+
C
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C
NC
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Ladder
+
C
Fig. 7.1.1 (a) Ladder and C structure for FANUC Series 16B/16C
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C
NC
Ladder
C
Ladder
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Fig. 7.1.1 (b) Ladder and C structure for FANUC Series 16i/18i/160i/180i
7.1.1
C Input/Output