Addressing - Siemens SIMATIC S5-100U System Manual

S5-100U

15.6.6 Addressing

The counter module is addressed like an analog module (see section 6.3).
• The module may only be plugged into slots 0 to 7.
• The address range extends from byte 64 to byte 127.
• In both process image tables, eight bytes are reserved per slot and of these eight bytes only the
first four are used.
Slot Addressing
Slot 0
64
Address
to
PII/PIQ
71
Meaning of the Bytes of a Slot Address (Example: Slot 1)
Table 15-7. Meaning of the Address Bytes of a Slot Address (Example: Slot 1)
Byte Byte
Number Address
0 72
1 73
2 74
3 75
4 to 7 76 to 79
EWA 4NEB 812 6120-02b
Table 15-6. Slot Addressing
1 2 3
72 80 88
to to to
79 87 95
Meaning in PII
Irrelevant
Diagnostic byte
High
byte
Actual value
Low
byte
4 5
96 104 112
to to to
103 111 119
Meaning in PIQ
High
byte
Low
byte
High
byte
Low
byte
Irrelevant
Function Modules
6 7
120
to
127
Setpoint 1
Setpoint 2
15-39