Extended instructions
9.11 Address handling
S7-1200 Programmable controller
552 System Manual, V4.2, 09/2016, A5E02486680-AK
Structure of the GEOADDR system data type
The structure GEOADDR is automatically created if you enter "GEOADDR" as the data type
in a data block.
HWTYPE UINT Hardware type:
• 1: IO system (PROFINET/PROFIBUS)
• 2: IO device/DP slave
• 3: Rack
• 4: Module
• 5: Submodule
If a hardware type is not supported by the instruction, a HWTYPE "0" is output.
AREA UINT Area ID:
• 0 = CPU
• 1 = PROFINET IO
• 2 = PROFIBUS DP
• 3 = AS-i
IOSYSTEM UINT PROFINET IO system (0=central unit in the rack)
STATION UINT
• Number of the rack if area identifier AREA = 0 (central module).
• Station number if area identifier AREA > 0.
SUBSLOT UINT Number of the submodule. This parameter has the value "0" if no submodule is
available or can be plugged.
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