Mitsubishi MELSEC-A series, Programming Manual

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7. APPLICATION INSTRUCTIONS
7
−
53
MELSEC-A
BRST
(1) Resets (0) the "n"th bit of word device specified at (D).
(2) For "n", 0 to 15 are effective. When 15 is exceeded, the instruction is executed
at the lower four bits.
Execution Conditions
Program Example BEST , BRST
Program which sets the 3rd bit and 8th bit of D19 when X18 turns on.
OFF
ON
Executed
per scan
Executed
per scan
Executed
only once Executed
only once
Set Reset command
P
•
Coding
0 LDI X00B
1 BRSTP D8 K8
8 LD X00B
9 BSETP D8 K3
16 END
Before execution
After execution
When XB turns off
When XB
turns on
P K
BRST D10 11
Before execution
After execution
Set to 0.
The 8th bit of D8 is reset.
The 3rd bit of D8 is set.
X00B
X00B
0
8
P K
BRST D8 8
P K
BSET D8 3