device manual AS-i DP-Gateway
R12
ASC0 handler switched
The decoding of the serial data flow was switched over.
Possible cause:
Command within the serial data flow to switch over the device into the Test Mode / Normal
Operating Mode.
R13
24V power unstable
During normal operation voltage dips below 18V were found on the 24V power supply cable.
Rectification:
Stabilisation of the 24V operating voltage permanently greater than 20V, use of a switched-mode
power supply.
R14
24V power fail restart
The voltage failure of the 24V power supply cable caused the device to start again.
The user has to acknowledge
this message, then the normal operating mode will start again.
Rectification:
Stabilisation of the 24V operating voltage permanently greater than 20V, use of a switched-mode
power supply.
R15
C165 Watchdog timeout
The main processor has found a timeout.
Possible cause:
Unacceptable interference on the AS-i power supply.
Unacceptably high electrostatic charges
and electromagnetic fields in close proximity of the device.
Rectification:
Grounding of the device via the DIN rail, connection of the FE terminal to the plant ground.
Use a switched-mode power supply to supply the device.
Hardware / operating system software error.
R16
Software restart
The main processor has detected a restart of the device which was not caused by a voltage failure.
R17
Wait for 24V power good
After the device was switched on an unacceptably low 24V power supply was detected, <18V.
The device is
waiting for a stable voltage supply and the acknowledgement of the error message by the user.
R18
master: Host WDT failure
During the continuous communication of the master with the operating system it has found a timeout.
Possible causes:
Voltage dips on the 24V power supply cable, operating system software error.
R19
>> error message not activated at present <<
R20
Profibus DP configuration
The configuration of the Profibus master for the device is not valid.
Possible causes:
Incorrect module lengths, incorrect number of modules, sum of the data length across all
modules too high.
The received data lengths can be checked in the “Fieldbus Setup” menu.
R21
No ifm DP interface detected
A Profibus DP card is expected in the device, however, it has not been detected.
Possible cause:
Wrong operating system in the device, e.g.:
AC1326 operating system software in an AC1311.
6-40