Metrohm tiamo 1.0 Manual - Manual (Page 58)

34 General program functions
Operators - Compare
Equal
Syntax
Operand1 = Operand2
The operands can either be entered directly or as a Variable and can be
of the type
Text , Number or Date/Time . The result type is always a number ( 1
= true, 0 = false).
Examples
Operand1 Operand2 Result Example Remarks
Operands of the same type:
Number Number Number 5 = 5 --> 1
4 = 5 --> 0 -
Text Text Number "Metrohm" = "AG" --> 0
"aG" = "AG" --> 0
In a comparison between two text the
ASCII values (see ASCII table) of the char-
acter strings are compared. Note: upper
and lower case letters have different val-
ues!
Time Time Number Time(1998;04;06) =
Time(1964;02;03) --> 0 Time() : see function Time(Date)
Operands of different types:
Number Text Number 1.2 = "1.2" --> 1
1.2 = "Metrohm" --> 0 Before the comparative operation the
Number is converted to Text and then the
texts are compared according to the ASCII
table.
Text Number Number "Metrohm" = 1.2 --> 0 The same rules apply here as for the pre-
vious operation.
Number Time Number 2.0 = Time(1999;10;07) -
-> 0 Before the comparative operation the
Date/Time is converted to Number . When
the operation is carried out the exact value
obtained after this conversion is always
used, even when only a maximum of 5
decimal places can be shown (for details
please refer to Type conversion "TimeTo-
Number", Note).
Time Number Number Time(1999;10;7) = 2.0 --
> 0 The same rules apply here as for the pre-
vious operation.
Text Time Number "Metrohm" =
Time(1999;10;07) --> 0 Before the operation an operand of type
Date/Time is converted to Text (i.e.: "1999-
10-07 00:00:00 UTC+2" ), then the texts are
compared according to the ASCII table.
Time Text Number Time(1999;10;07) =
"Metrohm" --> 0 The same rules apply here as for the pre-
vious operation.