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ALPHA-VISION® API-Interface to Technology program: FC157 |
FC157
SUMMARY
The AbvSpu provides functions to read and write process attributes (status, measuring value, alarm information) as well as to control process parameters (limits, delay times, etc.).PARAMETERS (IN)
- obj (INT)
- Object Number
PARAMETERS (OUT)
- iVal (DINT)
- Value as INTEGER (DINT)
PARAMETERS (IN_OUT)
DESCRIPTION
GetValueI() - Reads the actual value in the format <DINT>Returns the value of the object referenced by <obj> in the format <DINT>.
The function is defined for Measuring Points (MP) and Process Variables (PV).
- For MP-Objects the value <obj.val> is returned.
- For PV-Objects of the type <Bit/Byte/Word/Dword/Real> the value <obj.val> is returned.
- The value is returned as <DINT>.
Internally the value of MPs are stored as real digit, that also applies for PVs of the format <REAL>. The return values of <bVal> and <iVal> are calculated from the REAL-Value.
Description of the Output Parameters
| Object/Signal Address | iVal |
|---|---|
| Bin-MP (A) | 1/0 |
| Bin-MP (DBX) | 1/0 |
| Bin-MP (E) | 1/0 |
| Ana-MP (PEW) | L#-2147483648 to L##2147483647 |
| Ana-MP (PAW) | L#-2147483648 to L##2147483647 |
| Ana-MP (DBD) | L#-2147483648 to L##2147483647 |
| Ana-MP (DBW) | L#-2147483648 to L##2147483647 |
| PV (DBX) | 1/0 |
| PV (DBB) | 0 ... 255 |
| PV (DBW) | 0 ... 65535 |
| PV (DBD, int) | L#-2147483648 to L##2147483647 |
| PV (DBD, real) | L#-2147483648 to L##2147483647 |
| PV (DBW, string) | 0 ... 65535 |