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Contact bounce protection for Digital output module
Created by: 007 at: 6/19/2010 3:00 PM (3 Replies)
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| 6/19/2010 3:00 PM | |
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Posts: 34 Rating:
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Dear All, What is contact bounce protection of S7-200, S7-300 & S7-400 series digital output modules. Anybody knows then please help me. Regards, Rajesh |
| 6/19/2010 3:15 PM | |
Joined: 9/28/2005 Last visit: 8/27/2024 Posts: 2957 Rating:
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Hello, All technical information on the modules are specified in manuals. Here they are: S7-200 System Manual S7-300 Module Data S7-400 Module Data You will find all available information on Siemens modules which are officialy published. Hope you will find what you need. |
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Best regards, |
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| 6/20/2010 7:51 PM | |
Joined: 7/2/2008 Last visit: 8/26/2024 Posts: 928 Rating:
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Hello 007, Hello Darius,
I think you mean digital input modules, don't you? To the best of my knowledge, the bouncing effect has always been a problem with digital input modules not with output ones. 1- If you already mean digital input modules then I can tell you that all digital input modules come with signal time delay that varies from few micro seconds to 20 or 25 msec. It just depends one which module you have chosen. And in certain modules the delay time is a parameter that can be changed. However, if there's still a problem coming from bouncing effect then a small piece of code or anON delay timer can be used in software to de-bounce signal. 2- If you really mean output modules then you might have been talking about surge suppression in output modules (Most likelytransistor output)with inductive loads. In this case all digital output modules do nothave a pre made solution and a free wheeling diode should be used across the coil. Best regards. H-H |
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| 6/21/2010 7:37 AM | |
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Posts: 34 Rating:
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Dear All, Thank u for early reply. With Regards, Rajesh |
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