2726188 Phoenix Contact, 2726188 Datasheet - Page 88

• Manufacturer Part Number: 2726188
• Description: INTERBUS Bus Coupler
• Manufacturer: Phoenix Contact

IL SYS INST UM E
Diagnostics
Status
8-4
PHOENIX CONTACT
8.1.4
1
2
Figure 8-2
The following states can be read on I/O terminals:
The status of the input or output can be read from the relevant yellow LED:.
In this section, I/O terminals are all terminals that acquire or output signals, i.e., all
terminals excluding bus couplers, power, segment, and power-level terminals.
The LEDs of the I/O terminals are electrically located in the logic area.
This may mean that the LED of an output is on but the output cannot be controlled due to
an error between the logic area and the digital output. The LED does not monitor the
output state. In the event of an error, the actual output state may differ from the state
indicated by the LED.
D
(1)
1, 2,
3, 4
(2)
For terminals with extended diagnostics
E1, E2,
E3, E4
Additional diagnostic or status indicators can be found on the terminals. They are
described in the corresponding documentation.
1
Green LED
Yellow LED
ON:
OFF:
Yellow LED
ON:
OFF:
Indicators on I/O terminals
2
D
1
Indicators on I/O terminals
2
1
2
1
Diagnostics (for meaning see page 8-2)
Status of the input/output
Corresponding input/output set
Corresponding input/output not set
The meaning depends on the terminal. It is described in the
terminal-specific data sheet, e.g.,:
Short circuit/overload of the initiator supply
Short circuit of an output
Diagnostic input error message
An error has occurred
No error
2
1
1
3
2
4
D
1
6452A117
1
2
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