Data Type: WSTRING According to the IEC 61131-3 standard, the data type WSTRING follows UCS-2 encoding. UCS-2 encoding means that a character is encoded with exactly the fixed length 2 bytes. UCS-2 co

Enumeration An enumeration is a user-defined data type composed of a series of comma-separated components (enumeration values) for declaring user-defined variables. You declare an enumeration in a DUT

Data Type: REAL, LREAL The data types REAL and LREAL are floating-point types according to IEEE 754. Floating-point types are necessary when using decimal numbers and floating-point numbers in decimal

Data Type: STRING Important In the case of Latin-1 encoding, the memory required for a STRING variable is always 1 byte per character plus one additional byte. For example, this results in 81 bytes in

Operator: AND The IEC operator is used for the bitwise AND of bit operands. When the input bits all yield 1, the output bit also yields 1; otherwise 0. Permitted data types: BOOL , BYTE , WORD , DWORD

Operator: BITADR The operator is an extension of the IEC 61131-3 standard. BITADR yields the bit offset within a segment in a DWORD . Important The offset depends on whether the "Byte addressing" opti

Operator: LOG The IEC operator yields the base-10 logarithm of a number. The input variable can be any numeric basic data type, but the output variable must be the data type REAL or LREAL . Example 12

Variable: VAR Local variables are declared between the keywords VAR and END_VAR in the declaration part of programming objects. You have read-only access to local variables (externally via the instanc

Adding Objects Requirement: A project is open. At least the top <project name> node exists in the Devices view ("device tree") and in the POUs view. The following instructions demonstrate some options

Changing the Compiler Version The compiler version, which is used in the current project to generate code for use on the target device, is defined in the project settings. The compiler version is inde