List of variables
If at the input "GetValu" a HIGH signal is present, the function block reads the list of system variables. If an error occurs during the reading process, "Error" is displayed at the output.
Signals
| Name | I/O | Type(s) | Function |
|---|---|---|---|
| GetValu | I | BIT | Activate reading |
| O | WORD | Access error | |
| Name1 | O | STRING | Name of variable part 1 |
| Name2 | O | STRING | Name of variable part 2 |
| VType | O | STRING | Type |
| StrForm | O | STRING | String of format |
| Unit | O | STRING | Unit |
| DType | O | STRING | Data type |
| DTypeC | O | UCHAR | Data type code |
| IODirec | O | UCHAR | direction |
| IOffset | O | WORD | Input Offset |
| OOffset | O | WORD | Output Offset |
Parameters
The maximum number of readable variables must be set using the parameter dialog (Max. 1024/Default 128)
Comments
"Name1" and "Name2" form a state string together. A STRING value represents a maximum of 17 characters. For this reason, longer strings will be split at a maximum of 2 STRING values. Any additional strings will be truncated.