Siemens SIMATIC ET 200eco PN Operating Instructions Manual page 78

Interrupt, error, and system messages
7.3 Diagnostics by means of LED display
Status and error displays SF/MT, BF, ON
Table 7- 1 Status and error displays of the ET 200eco PN
LEDs
SF/MT BF ON
Off Off On
Off Off Off
* Flashin On
g
* On On
On * On
(red)
On * *
(yellow
)
* irrelevant
Status display of the port LEDs
Table 7- 2 Status display of the port LEDs
LED
P1 LK P2 LK
Off Off No connection to the switch/IO Controller.
On On Connection to switch/IO Controller.
78
Meaning
IO Device is currently exchanging data with
the IO Controller without errors. The IO Device
is supplied with power (electronic/sensor
supply).
Electronic/sensor voltage missing or too low at
the I/O device.
Hardware fault.
Faulty or no connect message frame - no data
exchange between the IO Controller and the
distributed device (IO Device), although the
device is physically connected to the switch.
Causes:
Incorrect device name

Error in configuration

Parameterization errors

The IO Device is not connected to a

switch.
Fault in peripheral circuit.
Incoming diagnostics
Maintenance alarm
Meaning
Remedy
---
Switch on the electronic/sensor/load supply for
the IO Device.
Replace the I/O device.
Check the I/O device.

Check the configuration and parameter

settings.
Check the device name.

Check the IO Controller.

Connect to the IO Controller.

Assign a valid device name to the I/O

device.
Check the bus installation.

Check whether the M12 cable connectors

are properly installed.
Check whether the bus cable to the IO

Controller is interrupted.
Evaluate the diagnostics interrupt.
Analyze the maintenance alarm.
Remedy
Check the IE cable.
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Operating Instructions, 06/2009, A5E01250250-04
ET 200eco PN