This simple plugin prevents blocks from changing their redstone state (current) in a configurable period of time.
It can be enabled/disabled either in-game (/emp on | /emp off) or by setting the "enable" property in plugins/McEMP/config.yml to "false" or "true". Also in config.yml there is an option ("world") to set the world the plugin takes the time of and two properties ("on-time" and "off-time") to set the in-game time redstone current changes should be enabled ("on-time") or disabled ("off-time").
It is intended to reduce lag at servers with many ongoing redstone clocks or other circuits that can produce lag.
WARNING Redstone clocks might need to be reactivated after the plugin has enabled them again!