Super Systems Compact HMI - Manual (Page 18)

Compact HMI and Compact HMI Editor Operations Manual
Super Systems Inc. Page 18 of 60
1. Tag(“[ConnectionName]TagName.BitName”) where ConnectionName is the
name of a defined Connection, TagName is the name of a defined Tag within that
connection, and BitName is the name of a defined bit within the register represented by
TagName.
2. Bit(BitNumber,Tag(“[ConnectionName]TagName”)) where BitNumber is the
number of a bit (0 to 15) within the register represented by TagName that is part of the
connection ConnectionName.
In most cases, Tags and bits will be called for the purpose of:
1. Calculating a value, which will typically be displayed and sometimes scaled before being
displayed; or
2. Evaluating a condition as True or False.
Table 2 provides details on the operators, constants, and functions that can be used in Compact
HMI Editor; the purpose of each; and examples of how they may be used in a valid expression.
Operator/Constant/
Function
Purpose Examples of Use in Valid Expression
Operators and Constants
+
Performs an addition Tag(“[Connection1]N7:0”) + 15
- Performs a subtraction Tag(“[Connection1]N7:0”) - 15
* Performs a multiplication Tag(“[Connection1]N7:0”) * 15
/ Performs a division and
keeps the decimal value
(division)
Tag(“[Connection1]N7:0”) / 15
Note: 3/2 returns 1.5
\ Performs a division and
drops the decimal value
(modulus)
1 / Tag(“[Connection1]N7:1”)
Note: 3\2 returns 1
^ Performs an exponential
calculation (calculates a
number raised to a certain
power)
Tag(“[Connection1]N7:0”) ^ 3
3^3
Pi Returns the value of Pi,
which is the ratio of the
circle’s circumference to its
diameter
Pi + Tag(”[Connection]N7:0”)
Note: Pi by itself returns 3.14159265358979
Logical Operators
<
Less than Tag(“[Connection1]N7:0”) < Tag(“[Connection1]N7:1”)
> Greater than Tag(“[Connection1]N7:0”) > 1
And Inclusive of more than one
condition
(Tag(“[Connection1]N7:0”) < 10) and
(Tag(“[Connection1]N7:0”) > 5)
<= Less than or equal to Tag(“[Connection1]N7:0”) <= 3
>= Greater than or equal to Tag(“[Connection1]N7:0”) >= 3
Or Inclusive of either/or
condition
(Tag(“[Connection1]N7:0”) < 1) or (Tag(“[Connection1]N7:3”) >
14)
<> Not equal to Tag(“[Connection1]N7:0”) <> Tag(“[Connection1]N7:1”)
= Equal to Tag(“[Connection1]N7:0.1”) = 0