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How does the Freshness work in the DDT on the M580 system?

Input and Output Freshness
This table describes the inputs and outputs that are associated with EtherNet/IP or Modbus devices: 
  
Name Description
Freshness This is a global bit:
  • 1: All input objects below (Freshness_1, Freshness_2, etc.) for the associated device are true (1) and provide up-to-date data.
  • 0: One or more inputs (below) is not connected and does not provide up-to-date data.
Freshness_1 This bit represents individual input objects for the connection:
  • 1: The input object is connected and provides up-to-date data.
  • 0: The input object is not connected and does not provide up-to-date data.
Freshness_2 This bit represents an individual input object for the device:
  • 1: The input object is true (1) and provides up-to-date data.
  • 0: The input object is not connected (0) and does not provide up-to-date data.
Freshness_3
...
(available)The rows after the Freshness data are organized in groups of Inputs and Outputs that have user-defined names. The number of input and output rows depends on the number of input and output requests configured for a particular device.
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