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Programming Function Blocks and Features
Video Recorder – User Manual 119
Free Form Logic
Lets you enter up to 64 characters as a custom logic equation (EQ) containing inputs and logical
operators. The result of this equation is called “Result”. Result is then processed according to the
specified condition type and condition time. The final output is CVn OS. See Figure 4-6.
FREE FORM
LOGIC
EQUATION
Inputs
A
B
C
D
E
F
G
H
Result
CONDITION
TYPE
&
CONDITION
TIME
CVn OS
Figure 4-6 Free Form Logic Signal Flow
Table 4-27 describes the Free Form Logic prompts. See Table 4-2 for additional prompts.
Table 4-27 Free Form Logic Prompts
Prompt Range/Selections Definition
EQ * Symbol for AND operator
+ Symbol for OR operator
^ Symbol for XOR operator
NEG Symbol for NOT operator
A, B, C, D, E, F, G, H Symbols for Input A through Input H
O Letter O is the symbol for output CVn OS from the previous
logic calculation. Use for iterative calculations.
1 One = ON
0 Zero = OFF
( ) Expressions enclosed by parentheses are evaluated first.
INPUT A - INPUT H OFF, discrete parameter, 0,
1.
Up to 8 input sources.
RESET OFF, discrete parameter, 0,
1
Resets the output to OFF (0). Use when using the letter O
in equations.
CONDITION TYPE NONE, DELAY, EXTEND,
PULSE, RT PULSE
See Table 4-20 on page 111.
CONDITION TIME OFF or number Enter number of seconds of condition time. See Table 4-20
on page 111.