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Interfaces of the Device
4.2.3.3
Diagnostic
The diagnostics LEDs are located at the rear of the operating device. The LEDs show
the states of the bus system.
Figure 4-14
Arrangement of the INTERBUS diagnostics LEDs
The diagnostics LEDs at the operating device has the following functions:
Table 4-17
Functions of the INTERBUS diagnostics LEDs
Designation
Color
State
Function
RC
Green
On
Remote Bus Check
+5 V
Green
On
Supply Voltage OK
Off
No Supply Voltage
On
Bus Active
Off
Bus Not Active
On
Remote Bus Inactive
BA
RD
Green
Red
4-15