Function block format
The function block format describes the function block that you need to pass to the function. If the function returns a response block, the response block is also described in this section.
The function block format table contains five columns:
- Offset
- The offset in decimal bytes to the beginning of the parameter.
- Length
- The length in decimal bytes of the parameter. If the length of a parameter is variable, the length column contains a dash (—) character.
- Type
- The RODM abstract data type of the parameter. A few parameters do not use the defined RODM abstract data types. The PL/I or data types are listed for parameters which do not use RODM abstract data types.
- Use
- The use is either In for data input to the function, or Out for data output by the function. For reserved fields and fields not used by a particular function, the use column contains a dash (—).
- Parameter Name
- The name of the parameter. Each parameter is described in Function Parameter Descriptions. This is the actual name used in the example function block or response block supplied with RODM.