Chapter 16 PLC Function Applications│CP2000
16-46
Command Function
SET
Action continues (ON)
Operand
X0–X17 Y0–Y17 M0–M799 T0–159 C0–C79 D0–D399
－
－ － －
When the SET command is driven, the designated element will be set as On, and will
be maintained in an On state, regardless of whether the SET command is still driven.
The RST command can be used to set the element as Off.
Ladder diagram:
Y0
X0
Y1
SET
Command code: Description:
LD X0 Load Contact a of X0
ANI Y0
Establish parallel
connection to contact b
of Y0
SET Y1
Action continues (ON)
Command Function
RST
Clear contact or register
Operand
X0–X17 Y0–Y17 M0–M799 T0–159 C0–C79 D0–D399
－
When the RST command is driven, the action of the designated element will be as
follows:
Element Mode
Y, M Both coil and contact will be set as Off.
T, C
The current timing or count value will be set as 0, and both the coil
and contact will be set as Off.
D The content value will be set as 0.
If the RST command has not been executed, the status of the designated element will
remain unchanged.
Ladder diagram:
X0
Y5
RST
Command code: Description:
LD X0
Load Contact a of X0
RST Y5
Clear contact or
register
Command Function
TMR
16-bit timer
Operand
T-K T0–T159, K0–K32,767
T-D T0–T159, D0–D399
When the TMR command is executed, the designated timer coil will be electrified, and
the timer will begin timing. The contact's action will be as follows when the timing
value reaches the designated set value (timing value >= set value):
NO (Normally Open) contact Closed
NC (Normally Close) contact Open
If the RST command has not been executed, the status of the designated element will
remain unchanged.
Ladder diagram:
X0
T5
TMR
K1000
Command code: Description:
LD X0 Load Contact a of X0
TMR
T5 K1000
T5 timer
Set value as K1000
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