Specifications

sigmadue - IEC 61131-3 Function Block Library

1-3-42 TIMER_ADV

FB Prototype

TIMER_ADV

Input parameters

Output parameters

Description

This FB performs a countdown Timer function with some advanced features. In

detail, the START command (it is evaluated ONLY on the rising edge), basically,

enable the execution ONLY of the FB but not yet the real count, it starts or stops

only with the RUN_HOLD command. At any time, with the RESET input is possible

to interrupt and reset the execution of the FB. Trough the digital output it is possible

to know, at any time, the status and the amount of time at the end of the timer.

Label Type Description

START BOOL Digital command to start the Timer

RUN_HOLD BOOL Digital command to Run or Hold the Timer count

T_RESET BOOL Digital command to Reset the Timer execution

TIME_HH REAL Preset Timer value in hours

TIME_MM REAL Preset Timer value in minutes

TIME_SS REAL Preset Timer value in seconds

Label Type Description

START_STS BOOL Timer status

RUN_STS BOOL Timer Run status

HOLD_STS BOOL Timer Hold status

END_TIMER BOOL End Timer status

COUNT_HH REAL Timer countdown (hours)

COUNT_MM REAL Timer countdown (minutes)

COUNT_SS REAL Timer countdown (seconds)

START

RUN_HOLD

T_RESET

TIME_HH

TIME_MM

TIME_SS

BOOL

REAL

BOOL

REAL

START_STS

RUN_STS

HOLD_STS

END_TIMER

COUNT_HH

COUNT_MM

COUNT_SS