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Chapter 5 Power Supply / CPU
5-2
5.2 CPU Specifications
The following table shows the general specifications of the MASTER-K120S series
5.2.1. Standard Type
Specifications
Items
K7M-DR/DRT/DT20U K7M-DR/DRT/DT30U K7M-DR/DRT/DT40U K7M-DR/DR`T/DT60U
Remarks
Program control method Cyclic execution of stored program, Time-driven interrupt, Process-driven interrupt
I/O control method Indirect mode(Refresh method), Direct by program command
Program language Instruction list, Ladder diagram
Numbers of instructions Basic : 30, Application : 277
Processing speed
0.1µs/step
Program capacity 10ksteps
I/O points 20 30 40 60
P P000 ~ P63F I/O relay,TR.
M M000 ~ M191F Auxiliary relay
K K000 ~ K31F Keep relay
L L000 ~ L63F Link relay
F F000 ~ F63F Special relay
T
100msec : T000 ~ T191 (192 points)
10msec : T192 ~ T250 (59 points)
1msec : T251 ~ T255 (5 points)
-. Adjustable by parameter setting
Timer
C C000 ~ C255 Counter
S S00.00 ~ S99.99
Step controller
Memory
device
D D0000 ~ D4999 Data register
Operation modes RUN, STOP, PAUSE, DEBUG
Self-diagnosis functions Detects errors of scan time, memory, I/O and power supply
Data back-up method Latch area back-up
Max. expansion level
Up to 3 level
(External memory or RTC module can be connected as 4th expansion module)