Examples

 QFI>FRDB A 0 20	    Block read 20 (decimal) words from data space 0 at 
 		    primary address A (hex) in the local crate

 QFI>FRDB 4010B 2 6  Block read of 6 (decimal) words from data space 2 at 
 		    primary address B (hex) of a remote crate using an SSP 
                     cable segment. See HELP ROUTING for information on 
                     communication with remote crates.

 QFI>DEFINE C1 40000  Set up a definition of "C1" as 40000 hex. (see
 		(HELP DEFINE for details)
 QFI>FRDB SSP1 C1 50
 		Block read of 50 (decimal) words from data space "C1" 
 		(defined above as 40000 hex) at primary address defined by 
 		"SSP1".  "SSP1" is assumed to have been previously set up 
 		by a call to TREE or to FBWHO (see help TREE or FBWHO) and 
 		can be accessed by the SHODEF command.