Internal Data Exchange

	without the Fast Counter	with the Fast Counter (only with AC500)
Digital inputs (bytes)	2 + expansion modules	4 + expansion modules
Digital outputs (bytes)	1 + expansion modules	3 + expansion modules
Analog inputs (words)	4 + expansion modules	4 + expansion modules
Analog outputs (words)	2 + expansion modules	2 + expansion modules
Counter input data (words)	0	4
Counter output data (words)	0	8