LOGICAL

ID_NAME	= <`id_name_of_logical_variable`>	Name of the logical variable.
DEF_TYPE	= BASE	Definition of a logical variable by comparison of existing numerical variables.
	= BOOLEAN	Definition by linking logical variables with Boolean operations.
OPER	DEF_TYPE = BASE:
	= GE	Variable A is greater than and equal to variable B.
	= LE	Variable A is less than and equal to variable B.
	= GT	Variable A is larger than variable B.
	= LT	Variable A is smaller than variable B.
	= EQ	Variable A equals variable B.
	DEF_TYPE = BOOLEAN:
	= AND	And-linkage of logical variable LOG_A to LOG_D.
	= OR	Or-linkage of logical variable LOG_A to LOG_D.

Items for DEF_TYPE = BASE

VAR_A	<`name_of_1st_variable`>	Name of a defined numerical variable.
VAR_B	<`name_of_2nd_variable`>	Name of a defined numerical variable.
FIX_VAL	<`value`>	Real value instead of VAR_B.

LOG_A	<`name_of_1st_logical _variable`>	Name of a defined logical variable.
LOG_B	<`name_of_2nd_logical _variable`>	Name of a defined logical variable.
LOG_C	<`name_of_3rd_logical _variable`>	Name of a defined logical variable.
LOG_D	<`name_of_4th_logical _variable`>	Name of a defined logical variable.

The direct definition of logical variables (DEF_TYPE = BASE) can be done by a comparison of two numerical variables or one numerical variable and a fixed value. The numerical variables must already be defined.
Definitions relating to Boolean operations (DEF_TYPE = BOOLEAN) must include at least two already defined logical variables that are referenced. A maximum of up to four logical variables may be combined.

LOGICAL
 ID_NAME = my_logical_01
 DEF_TYPE = BASE
 OPER = LT
 VAR_A = volume_part_a
 FIX_VAL = 100.0
END_