Siemens SIMATIC S5 Manual page 58

IP 265
Example: Determining the address of an input parameter
You want to store e.g. a count in bytes 4 and 5 of the PIQ in the CPU user program.
You have plugged the IP 265 into slot 2. Consequently, the starting address of the slot
(module address) is 80.
M.addr+0
Control word
M.addr+1
M.addr+2 Input parameter
M.addr+3 Input parameter
M.addr+4 Input parameter
Input parameter
M.addr+5
Input parameter
M.addr+6
Input parameter
M.addr+7
M.addr=Module address
Figure 5-3. Example: Addressing an Input Parameter in the CPU User Program
EWA 4NEB 812 6130-02a
PIQ
Address of the word input parameter:
QW (M.addr+4)=QW 84
Addressing
5-7