Siemens ET 200pro Operating Instructions Manual page 218

Alarm, error and system messages
9.2 PROFINET IO
Status and error displays GE, BF, ON, LINK, RX/TX, FO
Table 9- 4 Status and error displays of the IM 154-4 PN High Feature on port 1 (P1) and port 2 (P2)
LEDs
P1 P1 P1 FO
LINK RX/TX
Off Off *
On * *
On On *
* * On
*) not relevant
LEDs
P2 P2 P2 FO
LINK RX/TX
For meaning, see LEDs on port 1 (P1)
Maintenance information MAINT
Maintenance information can indicate a maintenance requirement or maintenance request.
The MAINT LED lights up yellow when maintenance information from PROFINET is
available (see Maintenance alarms (Page 221)). An alarm message is generated in addition
to the LED display.
24 V DC status indicator
The green 24 V DC LED is lit when the 2L+ load voltage supply is connected. If the LED is
not lit, check to see if the power supply is switched on and the fuse is functioning.
218
Meaning
No connection to the IO controller
(no IO controller available on the network)
There is a connection to the IO controller.
Correct operation
Transmission/reception is in progress
Maintenance demanded:
Attenuation through the fiber-optic cable is so
high that operation will soon no longer be
possible.
Meaning
Remedy
Set uniform baud rate
•
Autonegotiation not successful
•
-
-
Check the affected data transmission link for
the following causes:
Damage to the fiber-optic cable
•
Correct installation of the PROFINET
•
connector/PROFINET connections
Adherence to the max. length of 50 m for
•
POF cables
Check that the FOC connector is firmly
•
seated
Remedy
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08