And Function Block - ABB RELION 620 Series Technical Manual

Section 3
Basic functions
3.17.1.2
148

AND function block

Function block
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Figure 64: Function blocks
Functionality
AND, AND6 and AND20 are used to form general combinatory expressions with
Boolean variables.
The default value in all inputs is logical true, which makes it possible to use only the
required number of inputs and leave the rest disconnected.
AND has two inputs, AND6 six inputs and AND20 twenty inputs.
Signals
Table 106: AND Input signals
Name Type
B1 BOOLEAN
B2 BOOLEAN
Table 107: AND6 Input signals
Name Type
B1 BOOLEAN
B2 BOOLEAN
B3 BOOLEAN
Table continues on next page
Default Description
1 Input signal 1
1 Input signal 2
Default Description
1 Input signal 1
1 Input signal 2
1 Input signal 3
1MRS757644 F
620 series
Technical Manual