Metrohm tiamo 2.1 (ProcessLab) - Manual (Page 69)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 2 General program functions
tiamo 2.1 (ProcessLab) ￭￭￭￭￭￭￭￭ 53
The operands can be entered either 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
Oper-
and1 Oper-
and2 Result Example Remark
Operands of the same type:
Number Number Number 5 = 5 --> 1
4 = 5 --> 0
-
Text Text Number "Metrohm" = "AG" --> 0
"aG" = "AG" --> 0
When making a comparison between two
texts the ASCII value of the character
sequence is compared (see Chapter 2.4.4.10,
page 77). Attention: Uppercase and low-
ercase letters have different values!
Time Time Number Time(1998;04;06) =
Time(1964;02;03) --> 0 (see Chapter 2.4.4.6.2, page 65)
Operands of a different type:
Number Text Number 1.2 = "1.2" --> 11.2 =
"Metrohm" --> 0 Before the relational operation, the Number
is converted to Text, afterwards the texts are
compared according to ASCII value (see
Chapter 2.4.4.10, page 77).
Text Number Number "Metrohm" = 1.2 --> 0 The same rules apply here as for the previous
operation.
Number Time Number 2.0 = Time(1999;10;07) --> 0 Before the operation, the operand of the type
Date/Timeis converted to Number. During
execution of the operation, the exact value is
always used after this conversion, even if max-
imum 5 places after the comma can be dis-
played (see Chapter 2.4.4.7.5, page 70).
Time Number Number Time(1999;10;7) = 2.0 --> 0 The same rules apply here as for the previous
operation.
Text Time Number "Metrohm" =
Time(1999;10;07) --> 0 Before the operation, the operand is conver-
ted from the type Date/Time to Text (here
thus: "1999-10-07 00:00:00 UTC+2"),
afterwards the texts are compared according
to ASCII value (see Chapter 2.4.4.10, page
77).
Time Text Number Time(1999;10;07) =
"Metrohm" --> 0 The same rules apply here as for the previous
operation.