6 Timer
11-46 SmartAXIS Touch User’s Manual
6.1 How the Timer is Used
Starts a countdown when the trigger condition is satisfied, and writes 1 to an internal device (HMI Timer Relay LTC)
once the set time has elapsed.
6Timer
Touch
LTD0
0
1
LTC0:
0
LTC0:
1
1999
1998 999 1
0
LTD0
Start countdown Set time
has elapsed
Condition
Satisfied
Satisfied
Start
countdown
0 0 1 0
Writes 1
to LTC0
Writes the
preset value
to LTD0 and 0
to LTC0
State of condition
Action
HMI Timer Relay
LTC0 value
HMI Timer Current Value
LTD0 value
1999
1999
1998 999 1
1999
0
Condition Condition Condition Condition
Not satisfiedNot satisfiedNot satisfied SatisfiedSatisfiedSatisfied SatisfiedSatisfiedSatisfied
Not satisfiedNot satisfiedNot satisfied
• The HMI Timer Relay LTC is an internal device (bit device) that changes to 1 once the time set for the
timer has elapsed.
• The HMI Timer Current Value LTD is an internal device (word device) that stores current values for the
timer.
• Once switched to the screen that the timer has been placed in, the following values will be given
regardless of the whether the trigger condition is satisfied or not satisfied.
- HMI Timer Relay LTC: 0
- HMI Timer Current Value LTD: Preset Value