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AVEVA™ PI System™ Feedback Portal

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Status No status
Product PI Connectors
Created by Guest
Created on Aug 20, 2022

Setting of parameters k and w for IEC 60870-5-104

Parameters k (Maximum number of outstanding I format APDUs) and w, cannot be adjusted, while vendors recommend customers to set it to k=12 and w=8
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  • Gabriel Verreault
    Reply
    |
    Aug 20, 2022
    For clarification: K: Maximum unacknowledged transmitted APDUs. The master does not send more APDUs if the maximum number of ADPUs have been transmitted and have not been acknowledged. W: Maximum unacknowledged received APDUs. This setting works in conjunction with T2 to limit how often the master acknowledges APDUs. Increasing this setting can reduce bandwidth required for acknowledging