Siemens SIMATIC S5-100U, System Manual

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S5-100U Function Modules
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
Table 15-6. Slot Addressing
0 1 2 3 4 5 6 7 Slot
Address
PII/PIQ
64
to
71
72
to
79
80
to
87
88
to
95
96
to
103
112
to
119
120
to
127
104
to
111
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
Number
0
1
4 to 7
2
3
Byte
Address
72
73
74
75
76 to 79 Irrelevant
Low
byte
High
byte
Meaning in PIQ
High
byte
Low
byte
Setpoint 1
Setpoint 2
Meaning in PII
Irrelevant
High
byte
Low
byte
Diagnostic byte
Actual value
EWA 4NEB 812 6120-02b
15-39