Справочник Пользователя для Mitsubishi Electronics QCPU

2-28

Other convenient instructions

Table 2.17 Other convenient instructions

Category

Instruction Symbol

Symbol

Processing Details

Execution 

Condition

Number

 of Basi

c S

tep

s

Subset

See for D

esc

ripti

on

Up/Down 
counter

UDCNT1

4

-

UDCNT2

4

-

Teaching 
timer

TTMR

3

-

Special 
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:
(D)+0: Off delay timer output

(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

ROTC

• Rotates a rotary table with n1 divisions 

from the stop position to the position 
designated by (S+1) in the shortest 
direction.

5

-

Ramp 
signal

RAMP

• Changes device data designated by D1 

from n1 to n2 in n3 scans.

6

-

Pulse 
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).

4

-

Pulse 
output

PLSY

4

-

Pulse 
width 
modulation

PWM

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).

5

-

UDCNT1

n

S D

(S)+1

Up

Down

Up

(S)+0

Present Cn value

Cn contact 

1 2 3 4

6 7 6 5

3 2 1 0 -1 -2 -3 -2 -1 0

0

4

5

UDCNT2

n

S D

(S)+0

(S)+1

Present Cn value

Cn contact

1

2

4

5

4

3

1

0

-1

0

3

2

TTMR

n

D

(Time that TTMR is ON) n

(D)

n=0:1, n=1:10n, 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

(n1)Hz

(D)

Output n2 times

PWM

n1 n2 D

n1

n2

(D)

MTR

D2 n

D1

S