6.2.4 TIMER COUNTING MODES
A Counting start time inside
the band, end in control
mode.
The time counting starts only when the
error is inside a ± 1 digit band. The con-
trol action is not affected by the Timer
function.
B Counting start time inside
the band, end with control
output forced to zero.
The time counting starts only when the
error is inside a ± 1 digit band. At the end,
the control output is forced to zero. [1]
C Counting start time = timer
launch time, end in control
mode.
The time counting starts when the timer
is launched. The control action is not
affected by the Timer function.
[1] When the Timer is not running the con-
trol output is forced to zero, also before the
Timer launch
44
6 - Special functions
#tiMe
Timer launch
Setpoint
Process
variable PV
Output OP
OP3
±
1 digit
band
#t.Mod
=
2
#tiMe
Timer launch
Setpoint
Process
variable PV
Output OP
OP3
±
1digit
band
#t.Mod
=
3
#tiMe
Timer launch
Setpoint
Process
variable PV
Output OP
OP3
#t.Mod
=
4
M4UK.ed6 20-05-2005 11:43 Pagina 44
