E-T-A ControlPlex EM12D-TIO, User Manual

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5 Operating modes and signalling
5.1 Operating mode: (system start)
When applying the supply voltage, the EM12D-TIO intelligent
supply module will be initialised. The device will carry out
implemented programme memory tests and self test routines.
During this time a communication via the interfaces is not
possible.
5.2 Operating mode: (critical failure)
If a failure is detected during the self test routines, the EM12D-TIO
intelligent supply module will change into operating mode »Critical
Failure«. In the event of a critical failure, the device will also
change into this operating mode. This operating mode can only
be discontinued by way of re-starting the device and it prevents
the data exchange via the interfaces. If the EM12D-TIO intelligent
supply module is in this operating mode, no communication is
possible with the superordinate control unit. The electronic circuit
protectors cannot be controlled by it and remain OFF.
5.3 Operating mode: (non-critical failure)
If there are invalid or no configuration data at all available in
the EM12D-TIO intelligent supply module, it will change into
the this operating mode. This operating mode only allows
restricted non-cyclical data exchange. Cyclical data exchange
is prevented. This operating mode will be left upon receipt of
the correct module and slot parameters and configuration data.
The circuit protectors remain OFF.
5.4 Operating mode: (independent
operation)
If no connection to the superordinate control unit is recognised
after the supply voltage was applied, the module will change
into the operating mode »independent operation«. Thus the
parameters stored in the EM12D-TIO will be transmitted to the
electronic circuit protectors. If there is a connection between the
EM12D-TIO and the superordinate IO link master and there is no
critical failure, the operating mode »independent operation« will
be quitted. Should the connection between the EM12D-TIO and
the superordinate control unit be interrupted during operation,
the EM12D-TIO will automatically change into the operating
mode »independent operation«.
By means of the non-cyclical parameter, the behaviour of the
EM12D-TIO can be defined in the event of an interruption of the
superordinate IO link master. Either the condition of the circuit
protector is frozen (FREEZE) or all circuit protectors are switched
off (UNFREEZE).
Should the connection between the EM12D-TIO and the
superordinate IO link master be interrupted and the non-cyclical
parameter unfreeze be set, all circuit protectors will be switched
off before changing into the operating mode »independent
operation«.
Should the connection between the EM12D-TIO and the
superordinate IO link master be interrupted and the non-cyclical
parameter »FREEZE« be set, the condition of the circuit protectors
will remain unchanged before changing into the operating mode
»independent operation«.
Should the connection between the IO link device and the
superordinate IO link master be restored after a previous
interruption, the EM12D-TIO will automatically change into the
operating mode »faultless operation«.
5.5 Operating mode: (faultless operation)
If there is no fault and a connection is in place to the superordinate
IO link master, the EM12D-TIO will change into the operating
mode »faultless operation«.
The parameters will be transmitted from the superordinate IO
link master to the EM12D-TIO and be saved there. Subsequently
they will be forwarded to the electronic circuit protectors. The
configuration data and the parameters will be exchanged as
non-cyclical data between the IO link master (superordinate
control) and the EM12D-TIO.