YOKOGAWA UP35A, User Manual

Page: 162 / 412

9-7
IM 05P02D41-01EN
Program Pattern Functions
9
9.2.2 Zone PID Selection
Description
Zone PID control automatically switches PID settings according to PV.
Zone PID control is used with reactors that change chemical reaction gain according to
temperature.
For the function and setting ranges, see “8.4 Switching PID.”
► Segment PID Selection: 8.4 Switching PID
9.2.3 Local PID Selection
Description
When local PID selection is selected, the program works according to the PID group
number set in the local PID number selection (L.PID).
Available only for the L.PID when ZON = 0 or 5. If set to “Local PID selection,” local PID
is selected irrespective of the operation modes.
Setting Details
Parameter
symbol
Name
Display
level
Setting range Menu symbol
ZON Zone PID selection EASY
0: Segment PID selection
1: Zone PID selection (selection
by PV)
2: Zone PID selection (selection
by target SP)
4: Zone PID selection (selection
by SP)
5: Local PID selection
CTL
L.PID
Local PID PID
number selection
EASY
Set a PID group number to use.
1 to 4
* Available only for the L.PID
when ZON = 0 or 5.
* If set to “Local PID selection,”
local PID is selected
irrespective of the operation
modes.
LOC
9.2 PID Selection Method