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AVEVA™ PI System™ Feedback Portal

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We created this site to hear your enhancement ideas, suggestions and feedback about AVEVA products and services. All of the feedback you share here is monitored and reviewed by the AVEVA product managers.

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

Interface for Modbus output to 4byte (32bit) registers

There are Modus supporting devices that feature 32bit single registers (e.g ROC800-Series). PI Interface for Modbus should be updated to have support to output to these 4byte (32bit) registers. Currently PI Interface for Modbus only has support for output to single 2bype registers or output to multiple 2byte registers to store 32bit data. There is a need to have the interface support output to single 32bit registers. Example device manual: https://www.emerson.com/documents/automation/roclink-800-configuration-software-user-manual-for-roc800-series-en-132340.pdf
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  • Guest
    Reply
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    Aug 20, 2022
    Air Liquide uses these RTU globally. Number of RTUs in service are ~500 units. Unable to write to 32bit single register affects the significantly. Changing the field devices for alternate methods is expensive and very time consuming. The fact that PI can read the data but cannot write doesn't make sense. It will be greatly appreciated if this feature is considered for enhancement. Thank you.
  • Kenneth Barber
    Reply
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    Aug 20, 2022
    This suggestion should be moved here: https://feedback.osisoft.com/forums/555142-pi-interfaces?category_id=183796 This suggestion is also a duplicate of the one linked below, which has been declined: https://feedback.osisoft.com/forums/555142-pi-interfaces/suggestions/17914906-modify-the-modbus-interface-to-accept-32-bit-unsig