Siemens ET 200pro - Page 218

Alarm, error and system messages
9.2 PROFINET IO
ET 200pro distributed I/O system
218 Operating Instructions, 03/2013, A5E00335544-08
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
Meaning
Remedy
P1
LINK
P1
RX/TX
P1 FO
Off Off * No connection to the IO controller
(no IO controller available on the network)
• Set uniform baud rate
• Autonegotiation not successful
On * * There is a connection to the IO controller.
Correct operation
-
On
On
*
Transmission/reception is in progress
-
* * On Maintenance demanded:
Attenuation through the fiber-optic cable is so
high that operation will soon no longer be
possible.
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
*) not relevant
LEDs
Meaning
Remedy
P2
LINK
P2
RX/TX
P2 FO
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.