Use data suffixes to read internal types

VT Scada uses address suffixes instead of calling Modbus functions directly. The following table will show how to read Z45 Controller internal types using the VT Scada suffixes.

Internal type	Available suffixes
Digital	No suffix is needed for digital pins
Numeric 16 Bit Integer	/UWORD (used for unsigned integers) /SWORD (used for signed integers)
Numeric 32 Bit Integer	/UDWORD (used for unsigned integers) /SDWORD (used for signed integers)
Numeric Floating Point	/Float
Hex	/UDWORD