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

5.3.6

Resetting devices (except for annunciators) (RST)

RST
RST
Function
(1) When the execution command is turned ON, the status of the designated devices becomes
as shown below:
Bit device
Timers and counters
When Bit Designation has been Made for Word Device
Word devices other than timers and counters
(2) When the execution command is OFF, the status of devices does not change.
(3) The functions of the word devices designated by the RST instruction are identical to the
following ladder:
X10
Operation Error
(1) There are no operation errors associated with the RST instruction.
Remark
Command
: Bit device number to be reset/ Word device bit designation (bits)
D
Word device number to be reset (BIN 16 bits)
Internal Devices
Set
Data
Bit Word
D
Device
Command
RST D50
Device number
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
• Timer, counter
b) The number of basic steps is 2 for word processing.
5.3.6 Resetting devices (except for annunciators) (RST)
RST
Constants Others
––
Device Status
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
Command
X10
MOV
5.3 Output Instruction
RST
D
K0 D50
Device number
: 4
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