Fnc 44 - Bon / Check Specified Bit Status - Mitsubishi FX3G Series Programming Manual

FX /FX /FX /FX
3G 3U 3GC 3UC
Programming Manual - Basic & Applied Instruction Edition
12.5 FNC 44 – BON / Check Specified Bit Status
Outline
This instruction checks whether a specified bit position in a specified device is ON or OFF.
1. Instruction format
FNC 44
D P
BON
2. Set data
Operand type
S S
1
D
n
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T
S S
1
S
D
2
n
1: "D .b" is available only in FX
2: This function is supported only in FX
Explanation of function and operation
1. 16-bit operation (BON and BONP)
The status (ON or OFF) of the bit "n" in
[When the bit "n" is ON,
• When a constant (K) is specified as the transfer source
Command
input
FNC 44
b15 b14 b13
1 0 1
K15 K14 K13
Series
Mnemonic
16-bit Instruction
7 steps BON
BONP
Word device number storing the source data
Bit device number to be driven
Bit position to be checked
[n: 0 to 15 (16-bit instruction), 0 to 31 (32-bit instruction)]
Digit Specification
1
and FX
3U 3UC
/FX
3U 3UC
D S
is output to
1
D D
is set to ON. When the bit "n" is OFF,
1
S D
BON
(n = K0 to K15)
S
b12 b11 b10 b9 b8 b7 b6
0 0 0 0 1 0
K12 K11 K10 K9 K8 K7 K6
12.5 FNC 44 – BON / Check Specified Bit Status
Operation Condition
32-bit Instruction
Continuous
13 steps
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
C D R U \G V
2
PLCs. However, index modifiers (V and Z) are not available.
PLCs.
D D
.
1
D D
is set to OFF.]
1
D S
, it is automatically converted into binary format.
1
n S D
= ON/OFF status of bit "n"
b5 b4 b3 b2 b1 b0
1 0 0 1 1 1 1
K5 K4 K3 K2 K1 K0
12 Data Operation – FNC 40 to FNC 49
Mnemonic Operation Condition
Continuous
DBON
Operation
Pulse (Single)
DBONP
Operation
Data type
16- or 32-bit binary
Bit
16- or 32-bit binary
Others
Con- Real Charac-
Index
stant Number ter String
Z Modify K H E " "
← n
bit device
D
n = 5
0 (OFF)
n = 8
1 (ON)
11
12
13
14
15
Pointer
P
16
17
18
19
20
321