1 addressing – Siemens S5-135U/155U User Manual
Page 506
10-10
System Manual
C79000-G8576-C199-06
10.3.1
Addressing
S5-130K, S5-135U or S5-155U
1st MM
2nd MM
3rd MM in the
last EU
S1
e.g.
127
(7FH)
3)
e.g.
126
(7EH)
3)
85
(55H)
4)
S2
e.g.
127
(7FH)
3)
e.g.
126
(7EH)
3)
170
(AAH)
4)
S3
85
(55H)
5)
85
(55H)
5)
85
(55H)
5)
S4
170
(AAH)
5)
170
(AAH)
5)
170
(AAH)
5)
User program in OB 1 or FB 0
without S5-DOS
with S5-DOS
L
EB
127
L
PY
127
T
AB
127
T
PY
127
L
EB
126
L
PY
126
T
AB
126
T
PY
126
L
EB
85
L
PY
85
T
PB
170
T
PY
170
BE
BE
3)
Possible addresses 0 (00H) to 255 (FFH)
4)
To achieve optimum fault detection, set the inverse addresses 85 (55H) and 170 (AAH) at S1 and S2.
5)
Since the addresses of the monitoring module switches S3 and S4 are not acknowledged, this must be done by the
monitoring module contained in the last expansion unit (the most remote from the central controller). The addresses
85 (55H) or 170 (AAH) of this monitoring module must be coded at switches S1 or S2, respectively.
These addresses may no longer be occupied for I/O tasks.
Example 1
Monitoring Module