Delta VP3000 Series - Page 291

Chapter 7 Second Development Platform VP3000
282
Instruction Function
SET Maintain the action (ON)
Operand
X0–X17 Y0–Y17 M0–M799 T0–159 C0–C79 D0–D399
－   － － －
Description
When the SET instruction is driven, its designated device will be “ON” and keep being ON
both when SET instruction is still being driven or not driven. Use RST instruction to set
the device to be OFF.
Example
Ladder diagram:
Y0
X
0
Y1
SET
Instruction code Operation
LD X0 Load X0 (the contact A)
ANI Y0
Connect Y0 (the contact
B) in parallel
SET Y1
Maintain the action
(ON)
Instruction Function
RST Clear the contacts or register
Operand
X0–X17 Y0–Y17 M0–M799 T0–159 C0–C79 D0–D399
－     
Description
When the RST instruction is driven, the actions of the designated devices are:
Device Status
Y, M Coil and contacts are set to “OFF”.
T, C
The current value of the timer or the counter are set to “0”, the coil and the
contacts are set to “OFF”.
D The value is set to “0”.
If RST instruction is not being executed, the status of the designated device stays intact.
Example
Ladder diagram:
X0
Y5
RST
Instruction code Operation
LD X0 Load X0 (the contact A)
RST Y5
Clear the contacts or
register
Instruction Function
TMR 16-bit timer
Operand
T-K T0–T159, K0–K32,767
T-D T0–T159, D0–D399
Description
When TMR instruction is executed, the designated coil of the timer receives power, and
the timer starts to count. When the counting reaches the setting value (current value 
setting value), the contact will be:
Normally Open (NO) contact Closed
Normally Close (NC) contact Open
If RST instruction is not being executed, the status of the designated device stays intact.
Example
Ladder diagram:
X0
T5
TMR
K1000
Instruction code Operation
LD X0
Load X0 (the contact
A)
TMR T5 K1000
T5 Timer Setting
value is K1000