Configuration Of The Safety Position Of Pilot Valves For Bus Error - bürkert 8691 Bedienungsanleitung

Type 8691
DeviceNet
1 data byte for inputs:
(sensors or initiators)
Bit sensor Value assignment
0 Bot not reached
Bit 0 End position
1 Bot reached
0 Top not reached
Bit 1 End position
1 Top reached
Bit 2... not used 0 always
Bit 7
Table 17: Data byte for inputs
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 52)
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 Value assignment
Character- 0 Output safety position
Bit 0 istics in event 1 Retain last valve
of bus fault
Bit
not used 0 always
1–7
Table 19: Data byte for safety mode
position
1 data byte for outputs:
(actuators or valves)
Bit pilot valve
Y1
Bit 0
Bit 1... not used
Bit 7
Table 18: Data byte for outputs
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 OFF
1 pilot valve ON
0 always
Value assignment
0 pilot valve 1 OFF
1 pilot valve 1 ON
0 always
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