24 description of the instructions, Description – MITSUBISHI ELECTRIC 700 Series User Manual
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Description of the Instructions
3.24 Description of the Instructions
In Chapter 6, the instructions are described in the following format.
Description
1) Indicates the section number, instruction outlines and instruction symbols.
2) The devices usable with the instructions are marked.
3) The digit designation that can be set is indicated for the instruction that requires digit
designation when a bit device is used.
4) The instruction for which the error flag turns on at operation error occurrence is
marked.
5) Shows the format in the ladder mode.
6) Explains the instruction.
7) Indicates the execution conditions of the instructions.
8) Shows program examples in the ladder mode and list mode.
Output Instructions
6.5.2
Device set, reset ... SET, RST
Functions
(1) Turns on the specified device when the SET input turns on.
(2) The device turned on is held on if the SET input turns off. It can be turned off by
the RST instruction.
(3) When the SET input is off, the device status does not change.
Execution Conditions
The SET and RST instructions are executed every scan.
Program Examples
,
1) Program that sets (turns on) Y8 when X8 turns on and resets (turns off) Y8 when X9
turns on.
Usable Devices
Digit
Designation
Error
Flag
Bit devices
Word (16-bit)
devices
Constants
Level
X
Y
M
T
C
D
K
H
N
(M9010,
M9011)
SET
{
{
RST
{
{
{
{
{
SET
D
SET input
RST input
SET
Device number
to be set (turned
on)
RST
Device number
to be reset
D
SET input
RST input
SET
RST
Coding
3)
4)
1)
2)
5)
6)
7)
8)