Resetting Devices (Except For Annunciators) (Rst) - Mitsubishi MELSEC QCPU Programming Manual

5 SEQUENCE INSTRUCTIONS

5.3.6 Resetting devices (except for annunciators) (RST)

Internal Devices
Set
(System, User)
Data
Bit Word
D
[Instruction Symbol] [Execution Condition]
RST
[Set Data]
Set Data
D
[Functions]
(1) Designated devices respond as follows when RST input is turned ON:
Bit device
Timers and counters
When bit designation has been made for word
device
Word devices other than timers and counters
(2) Device status does not change when RST input goes OFF.
(3) The functions of the word devices designated by the RST instruction are identical to the
following ladder:
RST input
X10
[Operation Errors]
(1) There are no operation errors associated with the RST instruction.
REMARK
1) The basic number of steps of the RST instruction is as follows.
a) For bit processing
• Internal device (bit to be specified by bit device or word device) : 1
• Direct output
• Timer, counter
• Other than above
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MELSECNET/10(H)
File Direct J \
Register
Bit
RST input
Bit device number to be reset/ Word device bit designation
Word device number to be reset
Device
RST D50
Device No.
QCPU
PLC CPU
Basic
High Performance
Usable Devices
Special
Function
Module
Word
U \G
Meaning
Turns coils and contacts OFF
Sets the present value to 0, and turns coils and contacts
OFF
Sets value of designated bit to 0
Sets contact to 0
RST input
X10
MOV
MELSEC-Q/QnA
QnA
Process CPU
Index Other
Constant
Register
K, H
Zn
BL
RST
D
Data Type
Bit
BIN 16 bits
Device Status
K0 D50
Device No.
: 2
: 4
: 3
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Q4AR
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