User programmable object in the C programming language.

 The code is edited by means of the Attribute Editor at
 the object's Code attribute.

 Up to 8 analog inputs respectively outputs and up to 8
 digital inputs respectively outputs.

 Digital inputs may be inverted either by means of the
 Attribute Editor, or by the logical operator '!' in the
 Code attribute.

 This application starts to declare a variable 'r1'. The r1 is
 assigned the sum of A1 and A2. As A2 is left open it will be
 given a value internally. If r1 is greater then 2.7 OA1 will
 be increased by one, otherwise cleard.

 The symbol of the CArithm accommodates to the Code
 attribute. To avoid very wide CArithm objects finish
 statements with return.

• AArithm
• DArithm

 Analog quantities that can be included in the Code
 attribute. If , for example, A1 is connected, the
 external signal is used, otherwise the internal
 attribute AIn1. Changes in AIn1, ..., AIn8 in the run
 time system are taken into consideration.

 Digital quantities that can be included in the Code
 attribute. If , for example, d1 is connected, the
 external signal is used, otherwise the internal
 attribute DIn1. Changes in DIn1, ..., DIn8 in the run
 time system are taken into consideration.

 Integer quantities that can be included in the Code
 attribute. If , for example, I1 is connected, the
 external signal is used, otherwise the internal
 attribute IIn1. Changes in IIn1, ..., IIn8 in the run
 time system are taken into consideration.

 The analog results of the latest Code evaluation.

 The binary results of the latest Code evaluation.

 The integer results of the latest Code evaluation.

 Ordinary code in the C programming language of up to
 1024 characters. The code is edited by means of the
 Attribute Editor and cannot be changed in the target
 environment. All C-statements are allowed.

 Note! If an arithmetical operator is followed by a graph
 name, e.g. A1, the operator and the graph name have to
 be separated by a space or a left parenthesis.