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11
Actions of the FVP110 During Operation
Block Modes
All function blocks have modes. All blocks have their mode, expressed by the MODE_BLK
parameter. It is a structure of four components:
Target This is the mode into which an operator wants to bring this block and is writ-
able.
Actual This mode shows the actual mode of the block and is read-only. When nec-
essary conditions are satisfied, this mode becomes same as target. There is
a chance that actual mode says different from target by some reason.
Permitted This mode shows which mode is allowed in the function block.
Normal This mode is a memo to record mode what an operator expects in normal
conditions.
Table 26 shows the modes supported by each FVP110 function block. Modes marked with
( ) cannot be specified as target.
Table 26 Block Modes
Function Block Modes
Resource Auto, O/S
Transducer Auto, O/S
AO RCas, Cas, Auto, Man, (LO), (IMan), O/S
DI Auto, Man, O/S
OS Auto, Cas, (IMan), O/S
AR Auto, Man, and O/S
IS Auto, Man, and O/S
PID and PID2 ROut, RCas, Cas, Auto, Man, (LO), (IMan), O/S