TM_1s_FUN

This is a user-defined function from a system function block. This timer for 1s units works as an ON-delay timer. If the start contact of the function is in the ON state, the preset time SV (set value) is started. When this time has elapsed, the timer contact T turns ON.

Parameters

Input

start (BOOL)

start contact

each time a rising edge is detected, the set value SV is copied to the elapsed value EV and the timer is started

SV (INT, WORD)

set value

the defined ON-delay time (0 to 32767s)

Input/output

dutInstance (TM_1s_FUN_INSTANCE_DUT)

Internal memory containing the internal values and states, which corresponds to the instance memory of the associated FB.

Output

T (BOOL)

timer contact

is set when the time defined at SV has elapsed, this means when EV becomes 0

EV (INT, WORD)

elapsed value

count value from which 1 is subtracted every 1s while the timer is running

The value can be changed during counting operation by writing to the variable from the programming editor.

Remarks

• The number of available timers is limited and depends on the settings in the system registers 5 and 6.

Time chart

1.  (1) download PROG mode
2.  (2) RUN mode