- Siemens Computers Network Cables User Manual

Series HMI Connection Manual
V1.02 Revision January, 2012 205
2 MD12 which Data Type is Byte and Data Length is Double Wordwhen it used for one
word Numeric Entry, it will occupy four addresses MB12,MB13,MB14 and MB15; But
data only stored in MB14 and MB15.
3 IW3 which Data Type is Byte and Data Length is 1 Word , when it used for double word
Numeric Entry, it will occupy for addresses IB3,IB4,IB5 and IB6order from highest to
lowest byte is IB5,IB6,IB3 IB4.