IDEC WindO/I-NV4, Руководство пользователя

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5 WindO/I-NV4 Common Operations and Settings
2-74
WindO/I-NV4 User’s Manual
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Data and operations that can be configured
Data
You can specify these types and values of data for conditional expressions.
Operators
Specify the type of arithmetic operation to execute on the data. (In the table below, indicates the operator’s left-
hand number, indicates the right-hand number.)
*1 1 if satisfied, 0 if not satisfied.
Item Description
Value
Set a constant number as data.
The range that can be set differs according to the selected data type.
For details, refer to “Data types” on page 2-1.
Device Address Set a device address for a bit device or a word device that stores the value to be handled as data.
Operator Details
Supported
device
Bit
device
Word
device
Arithmetic
operators
+ Addition
Adds and .
NO YES
- Subtraction
Subtracts from .
NO YES
* Multiplication
Multiplies and .
NO YES
/ Division
Divides by .
NO YES
% Modulo
Calculates the remainder after dividing by .
NO YES
Relational
operators
*1
== Equal to
Compares if is equal to .
YES YES
!= Not equal to
Compares if is not equal to .
YES YES
>= Greater than
or equal to
Compares if is equal or greater than .
NO YES
<= Less than or
equal to
Compares if is equal or less than .
NO YES
> Greater than
Compares if is greater than .
NO YES
< Less than
Compares if is less than .
NO YES
Bitwise
operators
& Bitwise AND
Calculates the logical product (AND) of each bit in and .
YES YES
| Bitwise OR
Calculates the logical sum (OR) of each bit in and .
YES YES
^
Bitwise XOR
(exclusive OR)
Calculates the exclusive logical sum (XOR) of each bit of and
.
YES YES
~ Bitwise NOT
Flips the logic of each bits of .
For word device and fixed values, 0 will be 65535 and 65535 will be 0.
For bit device, 0 will be 1, and 1 will be 0.
YES YES
<< Left shift
Shifts each bit of to left for bit(s).
YES YES
>> Right shift
Shifts each bit of to right for bit(s).
YES YES
Logical
operators
*1
&& Logical AND
Calculates the logical product (AND) of a conditional expression
and a conditional expression.
YES YES
|| Logical OR
Calculates the logical sum (OR) of a conditional expression and a
conditional expression.
YES YES
• You cannot select logical operators in the Trigger Condition Settings dialog box.
• You cannot mix bit devices and word devices in a conditional expression when using other than logical
operators.
As a basic rule, conditional expressions are calculated in order from the left, but when multiple arithmetic
operations are combined, they are calculated according to the operator priority.
For [D 10] == [D 11] + [D 12] * 2 + [D 13], the expression is calculated in the following order.
For the operator priority, refer to Chapter 20 “6.5 About the Priority of the Operator” on page 20-62.
D10 D11 == + * D12 2 D13 +
1
3
4
2