Configuration Of The Safety Position Of Pilot Valves For Bus Error - Burkert 8691 Manuel D'utilisation

11.11 configuration of the safety position of pilot valves
for bus error
If a bus fault occurs, the bus status LED may assume the "Green flashing", "Red flashing" or "Red" status.
(For a description see "Status of the bus LED", page 56)
The valve safety position and safety module attributes can be used to configure the pilot valve in the event of a bus fault.
If a bus fault occurs, the configuration data of the pilot valves can be accessed acyclically via Explicit Messages.
• The Get_Attribute_Single service stands for a read access of the configuration data.
• The Set_Attribute_Single service stands for a write access of the configuration data.
1 data byte for safety mode:
(Attribute address: class 150, instance 1, attri-
butes 7)
Bit mode
Character-
Bit 0 istics in event
of bus fault
Bit
not used
1–7
Table 19: Data byte for safety mode
52
Value assignment
0 Output safety position
1 Retain last valve
position
0 always
english
Type 8691
DeviceNet
1 data byte for valve safety position:
(Attribute address: class 150, instance 1, attributes 6)
Bit pilot valve
Y1
Bit 0
(pilot valve 1)
Bit 1... not used
Bit 7
Table 20: Data byte for valve safety position
Value assignment
0 pilot valve 1 OFF
1 pilot valve 1 ON
0 always