Diagnostics With The Maintenance Station - Siemens SIMATIC CFU Commissioning Manual

ER/MT (error/main‐
tenance)
Flashes
Flashes
ON
9.3

Diagnostics with the Maintenance Station

The device diagnostics indicates the maintenance statuses of the individual channels of the
CFU on the Maintenance Station:
A faulty IO device (sensor, actuator or field device) does not trigger indication of a faulty CFU.
The CFU signals the respective status for each channel or for each PROFIBUS PA field device
(only for CFU PA).
SIMATIC CFU
Commissioning Manual, 08/2019, A5E39252870-AD
FB<n> - LED Maintenance
Interrupt
Flashes
Necessary
Flashes
Requirement
ON
9.3 Diagnostics with the Maintenance Station
Message
● Wire break
● Short-circuit
● Signaling of pending DPV0 alarms of the field device
You can find information on this in section "CFU PA:
Displaying DPV0 alarms on CFU PA LEDs
(Page 98)".
● Warning limit exceeded
● Service port enabled
● Alarm limit for voltage and/or current exceeded/
fallen below
● Error during the startup phase of the field device
– No communication possible
– Automatic addressing failed
– Reading out of IOs failed
– Setting of Selected IO failed
– The configured field device and the selected IO in
PDM are not compatible
● Name of the field device (TAG) does not match HW
Config
You can find information on this in section "CFU PA:
Comparing TAGs (Page 98)".
● Error while using the service interface (service port
enabled)
– You can find information on this in section "CFU
PA: Using service interface (Page 124)".
– A field device is identified as unknown if it was not
last one in operation on this CFU at one of the
other fieldbus connections.
● PROFIBUS PA address in the CFU and in the field
device do not match.
You can find additional information on this in section
"CFU PA: Startup of field devices depending on the con‐
figuration (Page 68)".
Diagnostics of the CFU
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