CTT Data Access PercentDeadband gets BadMonitoredItemfilterUnsupported

[johannwesely]

Hi,
in our server we have AnalogItemType Values and CTT fails with most of the PercentDeadband Tests:

Is it not implemented yet ? How can we support here.

Greetings Johann

[kevinherron]

Percent deadband filters are not implemented. You're welcome to have a go at it.

One of the things that is tricky about implementing this is that the EURange and EngineeringUnits are separate property nodes, which makes obtaining these a little more work. The easiest and most performant option would be to lock these in at the time the filter is created rather than trying to read them every time the filter evaluates, but if the properties are writable by Clients then this may not end up being viable, unless you also added logic to update the filter any time these changed.