I am having a problem with OMI Viewapp 2020

Question

I am having a problem with OMI Viewapp 2020. I'm using a pushbutton, but it is not working right. When I toggle the button, it doesn't change in the PLC, but if I change it in the PLC, it changes in the OMI Runtime. Maybe it is a bug because sometimes it works and sometimes it doesn't. All the TAGs are right, including the instances. I'm uploading some screenshots to explain the problems.

Ernst van Wyk · Accepted Answer

I am guessing you set the InputSource to a specific tag on the PLC, right? We may have to walk this through and try to figure out why this is happening: 
 
 Michael suggestion is also the first place I would look - we need to check the security:
 
 Is the Galaxy configured for security (Galaxy | Configure | Security) - and which type (Galaxy security is not recommended, we recommend using Windows OS User or Group or an external provider like Azure AD or CONNECT.) 
 If security is configured, check in OMI:
 
 A user must be logged in if security is enabled, otherwise any attributes not set to Free Access will not be writable. 
 If a user is logged in, make note of the username.

Under the security configuration have a look at the Security Groups tab. Go through the security groups on the left and see which one contains CALC_F8 
 Now have a look at the Users Tab - Find your user in the "Authorized Users" list and note which Roles was assigned to it. 
 Now have a look at the Roles tab - Select the roles on the left corresponding to your user's Roles - ensure that one of them has "Can Modify Operate Attribures" enabled under the Operational permissions

If security is not the issue, you can Open Object Viewer and bypass OMI.
 
 Rightclick the object (CALC_F8) 
 Select Open in Object Viewer 
 Once it is open, find your attribute (F8TSE_RET4_FINO_P3) on the right (you may want to sort by attribute name). 
 Click and Drag it into the Watch window 
 Now double-click it in the watch windo and try to change the value. 
 If it does not work, there should be an error message telling you why.

If you still do not get it working, it may be better to get someone from Tech support to sit with you and troubleshoot the issue. You can open an issue but sending an e-mail to wwsupport@aveva.com (or custfirstsupport@aveva.com if you are a Flex or Customer First subscriber).

I am having a problem with OMI Viewapp 2020

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