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Product length compensation at every nth product only can be implemented as follows.

Task definition

Products with a length of 2000 units are being cut. However, compensation is only required at every 5th product. The values for the compensation should be read from a FIFO buffer (100, 80, 110, etc.).

Procedure

•"ProductLength" = 2000; "ProductLengthCorrection" = 100

•"InitData" = TRUE

•Wait until "CutCount" = 5

•"ProductLength" = 2000; "ProductLengthCorrection" = 80

•"InitData" = TRUE

•Wait until "CutCount" = 10

•…

Application example

Perforation

1 cutting blade and 4 perforation blades are distributed throughout the circumference of a cross cutter axis. Correction takes place at the start of the product during cutting. The product length should be divided consistently.

Product length = 2000, "ProductLength" = 400

"InitData" = TRUE for compensation always at the start or if "CutCount" is divisible by 5.

Product count = Cut count = "CutCount" / 5