Справочник Пользователя для Mitsubishi Electronics MELSEC -Q/L
48
2 INSTRUCTION TABLES
2.4 Basic Instructions
2.4 Basic Instructions
Other convenient instructions
Category
Instruction
symbol
symbol
Symbol
Processing details
Execution
condition
condition
Number
of basic
steps
of basic
steps
Subset Reference
Up/Down
counter
counter
UDCNT1
4
UDCNT2
4
Teaching
timer
timer
TTMR
3
Special
timer
timer
STMR
The 4 points from the bit device
designated by (D) operate as
shown below, depending on the
ON/OFF status of the input
conditions for the STMR
instruction:
designated by (D) operate as
shown below, depending on the
ON/OFF status of the input
conditions for the STMR
instruction:
• (D)+0: Off delay timer output
• (D)+1: One shot after off timer
• (D)+1: One shot after off timer
output
• (D)+2: One shot after on timer
output
• (D)+3: On delay and off delay
timer output
3
Shortest
direction
control
direction
control
ROTC
• Rotates a rotary table with n1
divisions from the stop position
to the position designated by
(S+1) in the shortest direction.
to the position designated by
(S+1) in the shortest direction.
5
Ramp
signal
signal
RAMP
• Changes device data
designated by D1 from n1 to n2
in n3 scans.
in n3 scans.
6
Pulse
density
density
SPD
• Counts the pulse input from the
device designated by (S) for
the duration of time designated
by n, and stores the count in
the device designated by (D).
the duration of time designated
by n, and stores the count in
the device designated by (D).
4
Fixed cycle
pulse
output
pulse
output
PLSY
• Outputs a pulse at a frequency
designated by n1 the number
of times designated by n2, to
the output number (Y)
designated by (D).
of times designated by n2, to
the output number (Y)
designated by (D).
4
Pulse width
modulation
modulation
PWM
• Outputs the pulse of the cycle
set by n2, for the amount of
time ON designated by n1, to
the output number (Y)
designated by (D).
time ON designated by n1, to
the output number (Y)
designated by (D).
4
Matrix input
MTR
• Reads data of 16 points
n
rows from the devices starting
from the one specified by (S),
and stores them to the devices
starting from the one specified
by (D2).
from the one specified by (S),
and stores them to the devices
starting from the one specified
by (D2).
5
UDCNT1
n
S D
1 2 3 4
6 7 6 5
3 2 1 0 -1 -2 -3 -2 -1 0
0
4
5
(S)+1
Up
Down
Up
(S)+0
Present
Cn
value
Cn
Cn
contact
UDCNT2
n
S D
1
2
4
5
4
3
1
0
-1
0
3
2
(S)+1
(S)+0
Present
Cn
value
Cn
Cn
contact
TTMR
n
D
(Time that TTMR is ON) n
(D)
n=0:1, n=1:10, n=2:100
STMR
n
S
D
ROTC
n2
n1
S
D
RAMP
D1 n3
n1 n2
D2
SPD
n
S
D
PLSY
n1 n2 D
PWM
n1 n2 D
MTR
D2 n
D1
S