Designating Data; Using Bit Data - Mitsubishi MELSEC QS Series Programming Manual

3.2

Designating Data

The following three types of data can be used with safety CPU module instructions:
Data that can be handled
by safety CPU module
3.2.1

Using bit data

Bit data is data used in one-bit units, such as for contact points 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.
M0
(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.
Word device
(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) or
counters (C). (Example: C0.0 is not available)
X0
D0.5
...Section 3.2.1
Bit Data
Numeric data
The 1 point M0 is
designated
SET Y10
b15
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
SET D0.5
SET Y10
Integer data Word data
Double word data
The 1 point Y10 is
designated
Each bit can use 1 as ON, 0 as OFF.
(1=ON, 0=OFF).
Word device
Bit designation of word device
(Bit 5 (b5) of D0 is turned ON(1).)
Bit designation of word device
(Turns ON/OFF in accordance with
1/0 of bit 5 (b5) of D0.)
3.2 Designating Data
3.2.1 Using bit data
...Section 3.2.2
...Section 3.2.3
3
b0
Bit No.
. ".
3-3