SA0147：不寻常的班次操作 -strict 检测不对位域数据类型进行的位移操作（ BYTE , WORD , DWORD , LWORD ) 说明：IEC 61131-3 标准只允许对位域数据类型进行位访问。但是，那 CODESYS 编译器还允许对无符号数据类型进行位移操作。 重要性：低 提示 另见严格规则 SA0018 . 例 107 . 例子 PROGRAM PLC_PRG VAR in_

SA0148：异常位访问 -strict 检测未对位域数据类型进行的位访问（ BYTE , WORD , DWORD ， 和 LWORD ）。 IEC 61131-3 标准只允许对位域数据类型进行位访问。但是，那 CODESYS 编译器还允许对无符号数据类型进行位访问。 重要性：低 例 108 . 例子 PROGRAM PLC_PRG VAR iTemp1 : INT; diTemp3 : DIN

Static Analysis ¶ Note The CODESYS Professional Developer Edition provides a tool for static code analysis . A rule set is included for automatically checking the naming convention described above. Un

Parameterization with parameter lists ¶ Implementation Details The language model of a certain library in a certain version is loaded only once in a project. This means that if, for example, the libra

Parameter Handling ¶ There are several ways for supplying values (from the caller) to a function, a function block or its methods (the callee). These values are necessary to influence the implemented

Visibility Control ¶ Visibility modifiers also none as access modifiers can be applied to some elements of CODESYS project or library. CODESYS will provide two groups of these modifiers. Attributes fo

External Libraries ¶ Like any normal CODESYS library, an external CODESYS library consists of reusable library elements. The difference to normal CODESYS libraries is that some of these library elemen

Working with external optional Libraries ¶ Optional external libraries serve to make optional runtime system components available in IEC. Optional means here that a component cannot be integrated in a

Developers best friends ¶ Attributes for expressing intended use cases, identifying real system properties and reacting with the live cycle of your plc application. We present here a collection of att

Advanced Topic’s ¶ Duration, Date and Time Dynamic Generation of FB Instances Segmented Buffers Synchronization of Concurrent Execution Asynchronous Job Execution Multicore - Tools Providing libraries