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, 07/2018, A5E39252870-AC
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
"Displaying DPV0 alarms on CFU LEDs (Page 82)".
● 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
● Name of the field device (TAG) does not match HW
Config
You can find information on this in section
"Comparing TAGs (Page 82)".
● Error while using the service interface (service port
enabled)
– You can find information on this in section "Using
service interface (Page 106)".
– 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.
● Field device not connected to the CFU or field device
connected to the wrong PROFIBUS PA address.
You can find additional information on this in section
"Startup of field devices depending on the configuration
(Page 52)".
Diagnostics of the CFU
95