
B–63505EN/02
4.INTERFACE BETWEEN NC AND PMC
153
(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,
MMCWW, MMC3R, and MMC3W functional instructions)
#7 #6 #5 #4 #3 #2 #1 #0
The instruc-
tion ended in
error.
R9000
Z
(3)R9002 to R9005 (Operation output registers for the DIVB functional
instruction)
The data remaining after the DIVB functional instruction is executed
in output.
Register for
remainder
(used by DIVB
instruction)
#7 #6 #5 #4 #3 #2 #1 #0
R9002
R9003
R9004
R9005
(4)R9091 (System timer)
4 signals can be used as system timer.
The specifications of every signal are as following.
R9091
#7 #6 #5 #4 #3 #2 #1 #0
always OFF
always ON
Cyclic signal of 200
ms (104 ms ON, 96
ms OFF)
Cyclic signal of 1 se-
cond. (504 ms ON,
496 ms OFF)
NOTE
1 Each signal is initially off.
2 R9091.0 and R9091.1 are set cyclically at the beginning of
the first ladder level.
3 Each signal (ON–OFF signal) has an accuracy of ± 8 ms.
4.2.4
System Reserve Area
of Internal Relay