Siemens SIMATIC ET 200eco PN - Page 86

Interrupt, error, and system messages
7.3 Diagnostics by means of LED display
ET 200eco PN
86 Operating Instructions, 08/2016, A5E01250250-AJ
Status and error displays SF/MT, BF, ON
Table 7- 1 Status and error displays of the ET 200eco PN
LEDs
Meaning
Remedy
SF/MT
BF
ON
Off Off On IO Device is currently exchanging data with
the IO Controller without errors. The IO Device
is supplied with power (electronic/sensor sup-
ply).
---
Off Off Off Electronic/sensor voltage missing or too low at
the I/O device.
Switch on the electronic/sensor/load supply for
the IO Device.
Hardware fault.
Replace the I/O device.
* Flash-
ing
On 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
• Check the I/O device.
• Check the configuration and parameter
settings.
• Check the device name.
• Check the IO Controller.
* On On
• The IO Device is not connected to a
switch.
• Connect to the IO Controller.
• Assign a valid device name to the I/O de-
vice.
• Check the bus installation.
• Check whether the M12 cable connectors
are properly installed.
• Check whether the bus cable to the IO
Controller is interrupted.
On
(red)
* On Fault in peripheral circuit.
Incoming diagnostics
Evaluate the diagnostics interrupt.
On
(yel-
low)
* * Maintenance alarm Analyze the maintenance alarm.
* irrelevant