Siemens SIMATIC S5 Manual page 27

Addressing
Meaning of the bytes of a slot (example: slot 1)
The following table gives you an overview of the assignment of the process I/O images. The IP 265
has been inserted into slot 1 in the example. The start address of the address area is therefore 72.
In addition, the table contains cross-references to the sections in which the individual bytes are
described.
Byte number Byte address
0 72
1 73
2 74
3 75
4 76
5 77
6 78
7 79
5-2
Meaning PIQ
Control word IP 265
Bit 0, Bit 1
Section 6
Setpoint range
Section 4.5
Signal byte, bit 0 ... 5
Section 3.4
Function mode byte
bit 4 ... 6
Section 4.1
Standard Function Counter
Meaning PII
Status word IP 265
Appendix A
Counter range
Section 4.5
Output byte
Section 3.4
Not insignificant
EWA 4NEB 812 6131-02