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Variant "Write" a) MES generates the product code

Variable Data type Description Direction
Write* BOOL If new product data is available, the variable is set to TRUE by the PLC. After successful saving, the PLC sets the variable back to FALSE. From PLC to MES
Written* BOOL This variable writes TRUE by MES when the data has been stored in the database. MES resets it to FALSE From MES to PLC
ProductName* STRING The PLC can use this variable to specify a product; e.g. the recipe name (can be static) From PLC to MES
ProductCode* STRING The product code generated by the MES is made available to the PLC. This code is applied to the product.From MES to PLC
ProductGUID* STRING The database GUID generated by the MES is made available to the PLC. It is an internal unique ID.From MES to PLC
Template STRING This variable can be used to specify the pattern for the creation of the product code by the PLC.From PLC to MES
Addition STRING The content of this variable is written to a placeholder within the product code (Template). From PLC to MES

  • Section 1:
    • {Product} is set by PLC at least 300ms before {Write}
    • {PLCPattern} is optionally set by PLC
    • {Addition} is optionally set by PLC.
  • Section 2:
    • {Write} is set by PLC.
  • Section 3:
    • {product code} is set by MES
    • {product ID} is set by MES
  • Section 4:
    • {Written} is set by MES.
  • Section 5:
    • {Write} is reset by PLC (Reason: rising edge {Write}).
    • {Product} is reset by PLC (Reason: rising edge {Written})
    • {PLCPattern} is reset by PLC (Reason: rising edge {Written})
    • {Addition} is reset by the PLC (Reason: rising edge {Written})
  • Section 6:
    • {Written} is reset by MES (Reason: falling edge of {Written}).
    • {Product code} is reset by MES (Reason: falling edge of {Write})
    • {Product ID} is reset by MES (Reason: falling edge of {Write})