Program’s Main Screen

Data Exchange between Siemens S7 and Siemens S7

- This program exchanges two kinds of data registers:  The first type is Real Array registers and the second type is a Double Integer register (Boolean Array 0 to 31)  

- The Real Registers are a Real array and consists of 2 to 50 registers.   The number of registers are defined in both PLCs and the exact number exchange is give by the ‘Array Length’ variable.   The first array length shown here is for a 31 element array (0 to 30).

- The Double Integer (Dint) register is one registers that is used to transfer discrete values back and forth.  The definition of the Dint register in the Siemens S7 processor is a single boolean DInt register with 0 to 31 elements.  

- The bit positions are preserved for both of the Siemens PLCs.