4/27/2016 12:36 PM | |
Posts: 567 Rating: (107) |
Hi, I think the fluttering function is only for the Messages of PCS7DiIn. Have A look at the APL Manual chapter 15.11.3. If you want to use the fluttering function for the Signal you have to use for example the MonDiL function block. Have a look at the APL Manual chapter 3.5. Link to the APL Manual: https://support.industry.siemens.com/cs/ww/en/view/90682917 |
4/27/2016 12:37 PM | |
Joined: 3/14/2008 Last visit: 10/14/2024 Posts: 2110 Rating: (942) |
There are two kinds of flutter suppression: For channel driver blocks and technology blocks. Example driver block: pcs7DiIn FlutEN = 1, then flutter suppression is active, the delay time can be set at FlutTmIn. Flutter occurs when the status of fault messages changes from “Outgoing” to “Incoming” within the delay time. The last fluttering channel and its set delay time deactivates the flutter message. The flutter time set in CFC at parameter “FlutTmIn” is send to the “DataXchg” parameter. The flutter suppression will not delay the input signal of the driver block to “PV_Out”. Example technology block: MonDiL This block has the following parameters: FlutEn:Enable “FlutFactor” and “FlutTmIn” FlutTmIn:Delay time to set the “Out” parameter according to “In”. If “In” changes from 0->1, then it takes a time set at “FlutTmIn” before the “Out” parameter is set to “1”. Also from 1->0. When “FlutTmIn” is set to 0.0, flutter messages and “FlutAct” will not be generated. In this case the “Out” parameter is directly set. FlutMsgEn:Enable/Disable the message: “Flutter limits violated” FlutFactor:Set how many flutter may occur during one minute. If the parameter is set to “5”, the signal input “In” can change 5 times within a minute. If the signal changes a sixth time, “FlutAct” is set active. It means there were too many flutters on the input signal. The “FlutAct” signal is reset when the amount of flutters is less than half set in “FlutFactor”. |
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