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Variant "Read" c) Read product data (base product + MES tag)
| Variable | Data type | Description | Direction | |
|---|---|---|---|---|
| Read* | BOOL | This variable sets PLC when data is requested and PLC sets it back to FALSE | From PLC to MES | |
| Read | BOOL | This variable sets MES to TRUE when data has been transferred to the PLC. MES resets it back to FALSE | From MES to PLC | |
| Product* | STRING | The product is set by PLC for MES | From PLC to MES | |
| MES tag* | STRING | Unique identifier assigned by MES for identification | From PLC to MES | |
| Product ID* 1..N | STRING | The GUID generated by MES for the first creation of the product code e.g. for variant a) “write” | From MES to PLC | |
| Product code 1..N | STRING | The generated product code is set by PLC for MES | From MES to PLC |
