YOKOGAWA UTAdvanced Series, User Manual

Page: 99 / 866

5-2
IM 05P07A01-01EN
5.2 Coordinated Items
The controllers operate in coordination with respect to the following items.

Target Setpoint
When the master is a program controller (UP controller), slave controllers (UT controllers)
can be operated in the program operation.
• When the master controller is set to PSL=3 (coordinated master station) and the slave
controller is set to PSL=4 (coordinated slave station):
The master controller sends the target setpoint.
The slave controller operates using the received target setpoint.
• When the master controller is set to PSL=9 (coordinated master station dual-loop
mode) and the slave controller is set PSL=10, 11 (coordinated slave station):
The master controller sends the target setpoints of Loop 1 and Loop 2.
If the program pattern-2 retransmission* is ON, the master controller sends the
target setpoints of Loop-1 and Loop-2.
The slave controller uses either Loop-1 or Loop-2 received target setpoint
according to the PSL setting.
*: Program pattern-2 retransmission (PT2.G) is a parameter provided only for U55A.
Note
When the master controller is set to PSL=3 (coortinated master station) and the slave controller
is set to PSL=10 or 11 (coordinated slave station), a coordinated operation error will occur.
When the master controller is set to PSL=9 (coordinated master station dual-loop mode) and
the slave controller is set to PSL=4 (coordinated slave station), a coordinated operation error
will also occur.

Start-up condition of the Super function (overshoot suppressing function)
• The slave controller operates according to the data received from the master controller
regardless of the setting of the parameter SC (Super function) for the slave controller.
Parameter
symbol
Name Setting range
SC Super function
0: OFF (Disable)
1: Overshoot suppressing function (normal mode)
2: Hunting suppressing function (stable mode)
3: Hunting suppressing function (response mode)
4: Overshoot suppressing function (strong
suppressing mode)
Note: The setpoints 2 and 3 are not available for Super function (overshoot suppressing function).
• When the master controller is the program controller (UP controller):
If the Super function (overshoot suppressing function) is disabled* by the program
pattern of the master controller, the Super function of the slave controller is turned
OFF according to the data received from the master controller.
*: When the target setpoint of currently-active segment is in ramp state (ramp-up or ramp-down)
and the target setpoint of next segment is also in ramp state in program pattern.

Operation mode (RUN/STOP) switching
Switching over the master controller’s operation mode also switches the operation
mode of the slave controllers accordingly.
When the master is a program controller (UP controller), the operation mode of the
slave controller (UT controller) is: STOP when the master is in RESET, RUN when the
master is not in RESET (PROG, LOC, REM).