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14-2
Chapter 14. Appendix
z
SP process / PID process block diagram
LSP1
LSP2
LSP8
LSP group selection
SP limit*
2
SP limit*
2
SP ramp
PID calculation
Deviation
Heat/cool output process
LSP
LSP
RSP
LSP
RSP
Standard values:
PV (LOOP1 to 4)*
3
Standard values:
SP (in use) (LOOP1 to 4)
Standard values:
MV (LOOP1 to 4)
Standard values:
Deviation (PV-SP) (LOOP1 to 4)
Connect when heating/
cooling control is used
Standard values:
Cool MV (LOOP1 to 4)
Standard values:
Heat MV (LOOP1 to 4)
Standard values:
SP (final value) (LOOP1 to 4)
RSP
*1
*1
AI (analog input) process block diagram (p. 14-1)
(for details about the RSP)
*2 Limited due to SP low limit/high limit and PV range
*3
AI (analog input) process block diagram (p. 14-1)
(for details about the PV)
Note
•
In the above figure, the SP for pattern operation is not shown.