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Appendix D How to Use PLC Function|
Explanations:
When the RST command is driven, motion of its specific device is as follows:
Device
Status
Y, M
Coil and contact will be set to “OFF”.
T, C
Present values of the timer or counter
will be set to 0, and the coil and contact
will be set to “OFF.”
D
The content value will be set to 0.
Program Example:
Ladder diagram:
Command code: Operation:
X0
RST
Y5
LD
X0
Load contact A of X0
RST
Y5
Clear contact Y5
Mnemonic
Function
TMR
16-bit timer
Operand
T-K
T0~T15, K0~K32,767
T-D
T0~T15, D0~D29
Explanations:
When TMR command is executed, the specific coil of timer is ON and timer will start to count. When
the setting value of timer is attained (counting value >= setting value), the contact will be as following:
NO(Normally Open) contact
Open collector
NC(Normally Closed) contact
Close collector
Program Example:
Ladder diagram:
X0
TMR
T5
K1000
Command code:
Operation:
LD
X0
Load contact A of X0 T5 timer
TMR
T5 K1000 Setting is K1000
Revision Jan. 2009, 06EE, SW--PW V1.12/CTL V2.12
D-37