Siemens SIMATIC Distributed I/O ET 200eco PN Operating Instructions Manual page 80

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
* Flashing On
* 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.
Status display DC 24V (only on I/O devices with digital outputs)
The DC 24V LED is lit in green color to indicate that you have connected the 2L+ switched
load voltage supply. If the LED is not lit, check whether power is switched, or whether the
fuse is okay.
ET 200eco PN
Operating Instructions, 06/2022, A5E01250250-AN
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
Interrupt, error, and system messages
7.3 Diagnostics by means of LED display
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 set­
tings.
• 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 Con­
troller is interrupted.
Evaluate the diagnostics interrupt.
Analyze the maintenance alarm.
Remedy
Check the IE cable.
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