Interrupt, error and system messages
9.2 PROFINET IO
ET 200M
Operating Instructions, 12/2008, EWA-4NEB780600602-08
219
Status and error displays SF, BF, ON, LINK, RX/TX
Table 9- 10 Status and error displays of the IM 153-4 PN
LEDs Meaning Remedy
SF BF MT ON
off off off off There is no voltage at the interface
module, or the interface module has a
hardware defect.
• Switch on the 24 VDC supply voltage at
the interface module.
* * * On There is voltage at the interface module. —
* Flash
es at
0.5
Hz
* on Faulty or no connect message frame - no
data transfer between the IO controller
and the interface module (IO device),
although the device is physically
connected to the switch.
Causes:
• Incorrect device name
• Configuration error
• Programming error
• The IO controller is disconnected,
defective or the bus cable to the
controller is missing.
• The backplane bus is not functional.
• Check the interface module.
• Check the configuration and parameter
settings.
• Check the device name.
• Assign a valid device name to the
interface module.
• Check the IO controller
• Check to see if the backplane bus has
been configured correctly (all modules
inserted, terminating resistor installed)
* on * on The IO device is not connected to a
switch.
• Establish a connection to the IO
controller (via a switch).
• Assign a valid device name to the
interface module.
• Check the bus configuration.
• Check that the bus connector is
correctly inserted.
• Check whether the bus cable to the IO
controller is interrupted.
The configured structure of the ET 200M
does not match the actual structure of the
ET 200M.
• Check the structure of the ET 200M,
whether a module is missing or
defective, or whether an unconfigured
module has been inserted.
• Check the configuration (using
STEP 7
,
for example), and correct the parameter
assignment errors.
on * * on
• There is an error in an I/O module, or
the interface module is defective.
• Diagnostics data available
• Replace the interface module, or get in
touch with your Siemens contact
partner.
• Remove error, e.g. wire break
on on * on A new SIMATIC Micro Memory Card is
currently being formatted.
• Wait until the formatting sequence is
complete. This may take several
minutes. If the LED behavior changes,
the formatting process is complete.
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