YOKOGAWA UP55A - Page 232

9-11
IM 05P02C41-01EN
Program Pattern Functions
9
Exampleofnosoaksegmentincontrolprogrampattern
Whenramp-prioritizedPVstartistheselectedstartcondition,thecontrolprogrampattern
ramp is the start trigger. The control program pattern contains points A1 to E1.
For some PV, the program advances through the segments up to the point at which
the ramp is reversed. When PV is set to point a, the program advances through the
segments up to the point A1 at which the ramp is reversed.
D1
E1
E2
D2
B1
C1
C2
B2
TSP
SSP
Segment 1 Segment 2 Segment 3
a
b
c
d
e
A1
A2
Program pattern
for control
Program pattern
for retransmission
Program operation start (PRG)
Time
Setpoint
PV at start Operation-startingpointfor
control
Operation-startingpointfor
retransmission
a A1 A2
b B1 B2
c C1 C2
d D1 D2
e E1 (SSP) E2 (SSP)
9.3SettingtheProgramStartingConditions(STC)