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SC100/200 Series Function Block Application Manual EM-6460-C
4. CONTROL BLOCKS
4.1 CONTROL BLOCK TYPES
Two control blocks of the following types are available, registered in Group 02 and 03.
• Basic PID
• Advanced PID
• Manual Loader
• Ratio Setter
• Indicator
4.1.1 SIMPLE LOOP CONTROL
PID control function is applied to Group 02 and 03 to realize two independent PID control loops. In the following example,
Group 02 and Group 03 MV outputs are provided via respective MV output terminals of the Controller.
If PID is not needed, Manual Loader function block is also available to directly manipulate the MV output.
4.1.2 RATIO CONTROL
Ratio Setter function is applied to Group 02, and PID Control function is applied to Group 03 in the example shown below.
PID
G02
PV
MV
G02
PID
G03
PV
MV
G03
Ratio
G02
PV
MV
PID
G03
PV
SP
MV
primary loop
secondary loop
