Siemens SICAM RTU User Manual page 223

Automatic Diagnosis (Example)
Errors that are recorded in the diagnosis table contain details about the possible error cause,
as well as indications for the error solution ("cause", "solution").
The indication in the diagnosis table distinguishes the following classes:
·
A...failure
Signals that an automation unit is no longer available
·
B...module failure
Signals that the internal communication with a module is no longer possible
·
I...internal error
Error that is unambiguously allocatable to the respective module in hardware or firmware
(e.g. checksum error in the parameter memory)
·
E...external error
Is detected by means of supervision of sensors and actuators (e.g. live zero, outage mi-
nute pulse longer than tolerable)
·
K...communication
Is detected due to the supervision of the communication connection
SICAM RTUs, SICAM AK 3 User Manual
DC2-028-2.03, Edition 07.2016
Service
223