Output Description¶
DONE
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| BOOL | - | TRUE / FALSE | - |
Output DONE indicates the state of execution.
It has the value TRUE when the execution is finished and the outputs are valid. When DONE becomes FALSE other outputs are not valid any more.
ERR
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| BOOL | - | TRUE / FALSE | - |
Output ERR indicates whether an error occurred during Function Block execution.
It is only valid when DONE is TRUE. The kind of occurred error is specified by the error identifier at output ERNO.
ERNO
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| WORD | - | 0 … 65535 | - |
At output ERNO the identifier of an occurred error is provided. It is only valid when DONE and ERR is TRUE (see, error messages): Error Messages of the Function Block Libraries
DCLK_DEVI (distributed \ clock deviation)
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| DINT | 0 | -2147483647…2147483647 | ns |
DCLK_DEVI shows the broadcast system time difference.
NUM_SLV (number \ of slaves)
| Data_Type | Default_Value | Range | Unit |
|---|---|---|---|
| DWORD | 0 | 1-255 | - |
NUM_SLV shows the number of slaves for which the master has an deviation. In case the function block reports an insufficient buffer, the value of NUM_SLV has to be compared with the provided LEN value.