How do you interpret the STATUSWORD in the HI 1756WS manual?

The "Number" value, in the table between Word and Definition, is the hex value for the status indicated.  So, as an example, if you get a value of 0040 hex (64 decimal) it would indicate the scale is in motion.  

Keep in mind that the STATUSWORD will be a combination of all applicable bits at any time.  So, an example of this would be if you had a value of 8041 hex, (32,833 decimal), it would indicate you have the channels enabled, it is in motion, and it has an A/D converter error.