
4. INTERFACE BETWEEN CNC AND PMC
B–64115EN/01
266
NOTE
1 This area is reserved for the PMC. I/O cannot be assigned to this area. Do not use this area
for sequence programs.
2 This area includes an area reserved for the PMC. The actually usable address range depends
on the CNC system configuration.
3 This area is reserved for the PMC. Do not use this area for sequence programs.
4 This area is a special relay area managed by the PMC system program. When using this area,
follow the description of each signal.
5 In an ordinary system, this area can be used as with the internal relay (R) area. The extended
relay (E) area is volatile, but a signal is input to or output from a memory card as a PMC
parameter. When a PMC parameter is read, the E area is initialized to the state present at the
time of PMC parameter output.
6 Message display state signals corresponding to message display request signals on a
one–to–one basis. This area cannot be written to.
7 This area is used for the fixed counter instruction (CTRB instruction), which specifies a preset
value as a constant.
8 This area is a special relay area for PMC management software. When using this area, follow
the description of each address.
9 This area is reserved for the PMC. Do not use this area for sequence programs.
(1)R9000 (Operation output register for the ADD, SUB, MULB, DIVB,
and COMPB functional instructions)
#7
Operation result
register
#6 #5 #4 #3 #2 #1 #0
Zero
Sign is minus
Overflow
VNZR9000
(2)R9000 (Error output for the EXIN, WINDR, WINDW, MMCWR, and
MMCWW functional instructions)
#7 #6 #5 #4 #3 #2 #1 #0
The instruc-
tion ended in
error.
R9000
4.2.3
System Reserve Area
of Internal Relay