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1 addressing – Siemens S5-135U/155U User Manual

Page 506

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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