Diagnostics And Troubleshooting; General Causes Of Errors - Leuze electronic MA 248i Original Operating Instructions

13

Diagnostics and troubleshooting

If problems should occur during commissioning of the MA
table. Typical errors and their possible causes are described here as well as tips for their
elimination.
13.1

General causes of errors

Error
Data loss
(DL bit)
Data in the RS 232
instead of in the
buffer
PWR status LED on the circuit board
Off
Green/orange,
flashing
Continuous orange
light
SF LED on the housing
Green, flashing
Red continuous light Network error.
BF LED on the housing
Red continuous light
Table 13.1:
Leuze electronic
Possible error causes
Data telegram longer than the bus
telegram in bus cycle/memory size.
Incorrect order.
No supply voltage connected to the device. Check supply voltage.
Hardware error.
Device in boot mode.
Device error.
Firmware update failed.
Device in service mode.
Communication error on the PROFINET-IO:
No communication to IO Controller estab-
lished ("no data exchange").
General causes of errors
MA
Diagnostics and troubleshooting
248i
Increase in bus telegram length.
Toggle out data earlier.
Correct order:
Provide data, toggle CTB.
Send the device to customer service.
No valid firmware, send device to cus-
tomer service.
Send the device to customer service.
Reset service mode with webConfig tool.
Check interface.
Cannot be rectified by a reset.
Send the device to customer service.
Check interface.
Cannot be rectified by a reset.
Send the device to customer service.
248i
you can refer to the following
Measures
79