Справочник Пользователя для Mitsubishi Electronics QCPU

3-3

3

4

4

6

7

8

3

.2 Designa

ting D

ata

3

.2.1 Using 

bit dat

a

Designating Data

The following six types of data can be used with CPU module instructions.

Using bit data

Bit data is data used in one-bit units, such as for contacts or coils. 

"Bit devices" and "Bit designated word devices" can be used as bit data.

(1) When using bit devices

Bit devices are designated in one-point units.

(2) Using word devices

(a) Word devices enable the use of a designated bit number 1/0 as bit data by the 

designation of that bit number.

(b) Word device bit designation is done by designating " 

. 

 ".  

(Designation of bit numbers is done in hexadecimal.)
For example, bit 5 (b5) of D0 is designated as D0.5, and bit 10 (b10) of D0 is designated 
as D0.A. However, there can be no bit designation for timers (T), retentive timers (ST), 
counters (C) or index register (Z). (Example Z0.0 is not available).

W

ord data

D

ata that can be handled by 

CP

U module

B

it data

Numeric data

C

haracter string data

Integer data

R

eal number 

(floating point) data

S

ingle-precision 

floating point data

D

ouble-precision 

floating point data

D

ouble-word data

.......................Section 3.2.2

...................... Section 3.2.1

.... Section 3.2.4 (1)

.... Section 3.2.4 (2)

...........Section 3.2.3

.... Section 3.2.5

M0

S

ET

Y10

D

esignation of 1 point 

of bit device Y10

D

esignation of 1 point 

of bit device M0

b

15

b

0

1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0

 to 

Word device

Each bit of a word device can be 
use

d (1=ON, 0=OFF)

D0.5

SET

Y10

Bit designated for word device
(

Turns ON Y10 if bit 5 (b5) of D0 is ON (1).)

X0

SET

D0.5

Bit designated for word device
(

Bit 5 (b5) of D0 is turned ON if X0 is ON.)