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Entry type: FAQ Entry ID: 109756529, Entry date: 04/12/2018
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What should you watch out for when you want to change the address by delta loading on an F_CH_AI channel driver block that has already been loaded?

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It is not permissible to change the hardware address by delta loading on an F_CH_AI channel driver block that has already been loaded from the "S7 F Systems Lib V1_3". Proceed as follows if you want to change the address by delta loading.


Fig. 01 Address of the analog input channel
 
Procedure
 
  1. First copy a new F_CH_AI channel driver block from the "S7 F Systems Lib V1_3" in the existing CFC-Plan.
  2. On this F_CH_AI channel driver block you parameterize a new hardware address at the corresponding connection ("VALUE" -> Interconnection to address...).
  3. Transfer the parameters and interconnections from the user program of the original F_CH_AI channel driver block to the newly added block.
  4. Delete the original F_CH_AI channel driver block.
  5. You can now transfer the change to the automation system via change compilation and delta loading.

Note

If you do not follow this procedure and you simply change the hardware address on the channel driver block and then transfer this change to the automation system via delta loading, this can lead to an F-STOP!

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