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Variant "Read" b) Read product data (base product + product code)
| Variable | Data type | Description | Direction | |
|---|---|---|---|---|
| Read* | BOOL | This variable sets PLC when new data is available and PLC sets it back to FALSE | From PLC to MES | |
| Read* | BOOL | This variable describes MES with TRUE, if the data was stored in the database. MES resets it to FALSE | From MES to PLC | |
| Product ID* | STRING | The generated database GUID is passed from MES to PLC, so that the measured values can be assigned faster | From MES to PLC | |
| Product Code* | STRING | The generated product code is set by PLC for MES | From PLC to MES | |
| Product* | STRING | The product is set by PLC for MES | From PLC to MES | |
| Measured value 1..N | miscellaneous | The measured values or states of the produced part can be evaluated by the PLC in various data formats | From MES to PLC |
- Section 1:
- {Product} is set by PLC at least 300ms before {Read}.
- {product code} is set by PLC at least 300ms before {read}
- Section 2:
- {Read} is set by PLC
- Section 3:
- {Product ID} is set by MES
- {measured values 1..N} are optionally set by MES
- Section 4:
- {Read} is set by MES.
- Section 5:
- {Read} is reset by PLC (Reason: rising edge {Read}).
- {Product} is reset by PLC (Reason: rising edge {Read})
- {Product code} is reset by PLC (Reason: rising edge {Read})
- Section 6:
- {Read} is reset by MES (Reason: falling edge of {Read})
- {Product ID} is reset by MES (Reason: falling edge of {Read})
- {Measured values 1..N} are reset by MES (Reason: falling edge of {Read})