Cannot read/write a plc5 float

Hi I am using the allen bradley ethernet driver with a PLC5 - but it will not read/write a float eg F15:0

any ideas anybody?

Are there any errors in the console on the gateway when you attempt to read or write? The tag does show up in the browse though?


By which I assume you mean.


User Manual

If so there are two like this:

15:14:00 DefaultExceptionMapper Connection lost, give up responding.

at org.apache.wicket.protocol.http.servlet.ServletWebResponse.flush(
at org.apache.wicket.protocol.http.HeaderBufferingWebResponse.flush(
at org.apache.wicket.request.resource.AbstractResource.flushResponseAfterHeaders(
at org.apache.wicket.request.resource.AbstractResource.setResponseHeaders(
at org.apache.wicket.request.resource.AbstractResource.respond(
at org.apache.wicket.request.handler.resource.ResourceRequestHandler.respond(
at org.apache.wicket.request.handler.resource.ResourceReferenceRequestHandler.respond(

but I don’t think they are related.

I can’t browse any data in the plc - not sure I am meant to be able to with a plc5? However it works for integers just not floats

Ah ignore this I seem to have tags in my database whi8ch don;t actually exist in the plc Thanks for your help