AUMA Aumatic AC 01.1 - Failure Behaviour on Bus Communication Loss

6.5.6 Failure behaviour on bus communication loss
A failure operation can be initiated in case of bus communication loss.
Preliminary conditions:
.
The failure behaviour is activated (FAILURE BEHAVIOUR M1510
parameter is switched on).
.
The reason for initiation (FAILURE SOURCE M1514 parameter) is set
to
BUSINTERFACE.
Sources for initiation (failure sources) for failure operation are:
.
The connection to the master is interrupted.
.
The master goes into clear status and sends:
–
either the Global Control Telegram with Clear contents.
–
or data telegrams of length 0 (DP FailSafe Mode).
A failure operation on bus communication loss can only be initiated if the
w
atchdog function in the master is activated.
If the reason for initiation of the failure function has been eliminated (con-
nection reestablished, master in operate status), the master can resume the
execution of operation commands.
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Actuator controls
AUMATIC AC 01.1/ACExC 01.1 Profibus DP Manual
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