Hi,
I am using a KNX sensor, It sends values (msg.payload) every 30 min, but sometimes it sends 2 msg in this duration. So I want to delete the second msg payload if is the case.
Have you an idea?
Thank you for your help 
Use delay node set to rate limit.
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With 'drop intermediate messages'.
Also the RBE node may possibly be useful to you. It can suppress messages with a repeated payload so that if you get two the same only the first gets through.
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Thank you 
