800xA 6.0 Changing Alarm Limits from Faceplate for SDInREAL

I need to use SDInREAL block for my SIL3 application. There is one problem i am facing that i cannot change Alarm Limts from the facelplate when online. I have the Safety Operator rights as you can see force is available in the attachment picture. Please help me on this.


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asked 6 months ago



You need to check parameter on your control module at Control Builder M, it is possible that the block has a flag to allow alarm set via HMI/Faceplate. See example below


answered 6 months ago


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I am afraid you may have to go with setting the limits on the respective parameters in offline (as you mentioned it is SIL3 application). I don't see any option is available for SDInReal to change limits from faceplate.


answered 6 months ago


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You can't change the Level H and Level HH values from faceplate of SDInReal function block.

These parameters are set as Administrate Write Permission at library object level. Hence you can changes these values only through logic/application program.

Below is the screen shot for your reference.

Hope this clears your question.

But if you want to change these values from faceplate, still this is possible through property attribute overrride.

Let me know if you want have the option to change the limits from faceplate.


answered 6 months ago


By msohaibbutt on 11/26/2017 | Like (0) | Report

Please tell me how to change it from faceplate.

By Kumaraswamy.B on 11/27/2017 | Like (0) | Report


I posted the procedure as new answer since I can't add images in comment.

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The follow the below procedure to enable/override the existing permissions of the object.

1. Go to Object Type Structure --> Control System --> AC 800M/C Connect --> Libraries --> SupervisionBasicLib --> Function Block Types --> select, SDInReal object.

2. Add Property Attribute Override aspect to aspects of the object as shown below:

3. Click on Add in the above and select required properties (LevelHH and LevelH)

4. Click on Apply button and select Property Permissions tab.

5. Select the Property and Click on Write Permissions as shown below:

6. You can select Operate or Tune permissions based on your requirement. However i suggest you to select "Tune" so that operator can't change the values from faceplate but engineer with "Tune" access can. If your requirement is the operator should be able to change these values, then you can select "Operate" permission.

7. Click on Apply after selecting required write permission.

Hope the above one helps you....


answered 5 months ago


By msohaibbutt on 11/28/2017 | Like (0) | Report

Adding property override did not work for me. Now i have to make a graphics display from where operator can change these limits.

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