ABB ControlMaster CM15 User Manual page 52

ControlMaster CM15
Universal process indicator
...Functions / Logic Equations
Equation Number
Operand 1 (8)
Invert 1 (8)
Operator1 (7)
Math Blocks
Math Block
Number
Block Type
50
1
/ DIN
8
Selects the logic equation to be configured.
See Appendix A, page 76 for description of sources.
Logically inverts (applies NOT function to) the digital signal.
For example, if the digital signal assigned to the operand has a state of '1' it is inverted to a state of
'0' before being applied to the equation.
Selects the Operator type: OR, AND, NOR, NAND, EXOR, END.
Select END if no more elements are required.
Up to 8 math blocks can be configured. Each block can be configured as 1 of 6 different types (see
Block Type below). The resulting analog value can be used as a source for other function blocks, for
example, Process Variable in the Custom Config parameter – see page 24.
The math block number (1 to 8).
Selects the type of math block required.
7 Advanced Level
IM/CM/I–EN Rev. D