User Manual - AnyBus® Communicator
DOC. ID: SDN-7061-059 Rev.1.51
2002-10-30
HMS INDUSTRIAL NETWORKS AB
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Offline options for sub-network
The action to take for this transaction if the sub-network goes off-line. This action
affects the data that is reported to the fieldbus master.
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The data is cleared (0) on the fieldbus if the sub-network goes offline
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The data is frozen on the fieldbus if the sub-network goes offline
Offline timeout time (10ms)
The maximum time between two incoming messages in steps of 10ms.
Trigger byte
The trigger byte is used to indicate to the fieldbus control system that a valid telegram
has been consumed on the sub-network. The control system should then read the
data area connected to the trigger byte.
The value of this byte is increased by 1 whenever a valid sub-network telegram has
been consumed and interpreted by the ABC.
(QDEOH
Enables the trigger byte. The memory location of the trigger byte must be speci-
fied in the ‘Trigger byte address’, see below.
'LVDEOH
Enables the trigger byte.
Trigger byte address
The location in the local memory buffer that this transaction uses for updates on trig-
ger byte changes
This memory location should be monitored by the fieldbus control system. If the con-
tents has been updated, e.g the value has been incremented, a valid sub-network
telegram has been consumed by the ABC and new data is available in the internal
memory buffer.