Firmware Release Notes SW01996-1.0.2.4

Supported devices:
R-8AI-8DIDO-2 (HW D0)

NEW:
- New registers added:
40531-40532 Din 1 : period in float
40533-40546 Din 2..8 : period in float
40547-40548 Din 1 : frequency in float
40549-40562 Din 2..8 : frequency in float
40563-40564 Din 1: low signal time in float
40565-40578 Din 2..8: low signal time in float
40579-40580 Din 1: high signal time in float
40581-40594 Din 2..8: high signal time in float