Burkert 8631, Operating Instructions Manual, Page: 33 / 118

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Configuration of the process data
For the transfer of process data via an I/O connection, 3 static input and 3 static output assemblies are
available for selection. In these assemblies, selected attributes are collected in an object in order to be
transferred together as process data via an I/O connection.
Access can be made cyclically in the connection variants "Polled I/O" and "Bitstrobed I/O" with "Change
of State" when input values change, or acyclically via Explicit Messages.
The access path for acyclically access is:
class 4
instance 1
attribute 3
With the service Get_Attribute_Single, access can be made reading acyclically and with the service
Set_Attribute_Single, access can be made writing acyclically to the starting data.
1 data byte for inputs (sensors or initiators):
1 data byte for outputs (actuators or valves):
Bit Sensor Value assigned
Bit 0 S1 (initiator 1)
0 initiator 1 OFF
1 initiator 1 ON
Bit 1 S2 (initiator 2)
0 initiator OFF
1 initiator ON
Bit 2 physically unusable
Bit 3
... unused 0 always
Bit 7
Bit Sensor Value assigned
Bit 0 V1 (valve 1)
0 valve 1 OFF
1 valve 1 ON
Bit 1
A2 output 2
physically unusable
Bit 2
A3 output 3
physically unusable
Bit 3
... unused 0 always
Bit 7