Siemens SIMATIC S7-200 - Sample Program for DP Communication to a CPU 224

S7-200 Specifications
A-64
S7-200 Programmable Controller System Manual
A5E00066097-02
Module = ”4 Word Out/ 4 Word In -” 0x73
EndModule
Module = ”8 Word Out/ 8 Word In -” 0x77
EndModule
Module = ”16 Word Out/ 16 Word In -” 0x7F
EndModule
Module = ”32 Word Out/ 32 Word In -” 0xC0,0x5F,0x5F
EndModule
Module = ”2 Word Out/ 8 Word In -” 0xC0,0x41,0x47
EndModule
Module = ”4 Word Out/ 16 Word In -” 0xC0,0x43,0x4F
EndModule
Module = ”8 Word Out/ 32 Word In -” 0xC0,0x47,0x5F
EndModule
Module = ”8 Word Out/ 2 Word In -” 0xC0,0x47,0x41
EndModule
Module = ”16 Word Out/ 4 Word In -” 0xC0,0x4F,0x43
EndModule
Module = ”32 Word Out/ 8 Word In -” 0xC0,0x5F,0x47
EndModule
Module = ”4 Byte buffer I/O -” 0xB3
EndModule
Module = ”8 Byte buffer I/O -” 0xB7
EndModule
Module = ”12 Byte buffer I/O -” 0xBB
EndModule
Module = ”16 Byte buffer I/O -” 0xBF
EndModule
Sample Program for DP Communication to a CPU 224
A sample program in Statement List for a CPU 224 that uses the DP port
information in SM memory is shown in Figure A-32. Figure A-33 shows the same
program in ladder logic. This program determines the location of the DP buffers
from SMW226 and the sizes of the buffers from SMB228 and SMB229. This
information is used in the program the copy the data in the DP output buffer to the
process-image output register of the CPU 224. Similarly, the data in the
process-image input register of the CPU 224 are copied into the V memory input
buffer.