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1 application, 1 design, Monitoring module – Siemens S5-135U/155U User Manual

Page 498: Figure 10-1 location of the coding switches

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10-2

System Manual

C79000-G8576-C199-06

10.1 Application

The monitoring module can be used in the expansion units of the
programmable controllers S5-115U, S5-135U and S5-155U.

The module monitors the data bus, the address bus and the control signals
MEMW/, MEMR/ and RDY/. Faults are displayed via four red LEDs on the
front panel. A group signal is output at the same time via a floating contact.
Following a fault, the module can be reset by means of the RESET key on
the front panel or the RESET input (see Section 10.2.3).

10.1.1

Design

The monitoring module is designed as a plug-in PCB in double Euroformat
with a 32-pin backplane connector for the S5 bus.

A connector for the relay contact and RESET input as well as one green
LED, four red LEDs and a RESET key are located on the front panel.

Operation (green LED)

Command output inhibit (red LED)

Control signal fault (red LED)

Address bus fault (red LED)

Data bus fault (red LED)

RESET input

Relay contact

RESET key

RUN

BASP

R/W

ADB

DB

1

2

3

4

5

6

7

8

S1

S2

S3

S4

S5

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

X4

1

6

Bus

PESP

QVZ

125ms

250ms

500ms

1s

1

2

4

8

16

32

64

128

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

Figure 10-1

Location of the Coding Switches

Monitoring Module