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Monitoring Module
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.
RUN
Operation (green LED)
BASP
Command output inhibit (red LED)
R/W
Control signal fault (red LED)
ADB
Address bus fault (red LED)
DB
Data bus fault (red LED)
RESET key
Relay contact
RESET input
Figure 10-1
Location of the Coding Switches
10-2
8
7
6
5
4
3
OFF
8
7
6
5
4
3
2
1
ON
OFF
8
7
6
5
4
3
ON
OFF
ON
8
7
6
5
4
OFF
ON
8
7
6
5
4
3
OFF
ON
X4
1
6
C79000-G8576-C199-06
2
1
S1
2
1
S2
3
2
1
S3
2
1
S4
System Manual
- Quick Links:
- Fault Indications/Fault Diagnostics
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