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Group display in basic process control

Created by: GoForIT at: 11/22/2008 6:16 PM (4 Replies)

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11/22/2008 6:16 PM	Rate (0)
GoForIT Posts: 352 Rating: (7)	Hi, I'm trying to make the group dsiplay functionality work in WinCC. It works fine on all alarms exept for the AH. This alarm works ok inside of the picture, but on the top level navigation screen the three first buttons starts lighting. I can't find any place to configure this. Does anybody have a idea?? O
GoForIT Posts: 352 Rating: (7)	Last edited by: Dr. Who at: 11/22/2008 6:17 PM
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11/23/2008 8:08 AM	Rate (0)
Nemo Posts: 3149 Rating: (171)	Hi please check this FAQ and run the PictureTree-Editor in WinCC http://support.automation.siemens.com/WW/view/en/493670 http://support.automation.siemens.com/WW/view/en/674987 http://support.automation.siemens.com/WW/view/en/17778440 nemo
Nemo Posts: 3149 Rating: (171)
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11/23/2008 12:15 PM	Rate (0)
GoForIT Posts: 352 Rating: (7)	Thank for your response Nemo. The connections through the hierachy works ok, The problem is the AH. (last bit) I read the single message state with a unsigned 32bit tag, but the group display value need signed 32 bit tag. I want to do this conversion with internal tags and c- script. Currently I'm using this code to convert the value which is not working. { long signed int n, x ; short unsigned int msw, lsw; n = GetTagDWord("MessageStateTag"); lsw = n; msw = n >> 16; msw = ~msw; x = ( lsw << 16) \| msw; SetTagDWord("GroupValueTag", x); } How can I convert this unsigned 32bit value to signed 32bit with c??? O
GoForIT Posts: 352 Rating: (7)	Last edited by: Dr. Who at: 11/23/2008 4:03 PM
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5/12/2009 4:15 PM	Rate (0)
schnek Bronze Member Joined: 11/13/2007 Last visit: 9/15/2023 Posts: 41 Rating: (0)	Try using the dwMsgCV of type Signed 32-bit. This seems to work by me. schnek

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5/12/2009 6:49 PM	Rate (0)
GoForIT Posts: 352 Rating: (7)	It seems like the problem was handling 32bit signed values. Now I do the computing in the plc and things works just fine. O
GoForIT Posts: 352 Rating: (7)
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