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OM11 - EPI
DeviceNet interface
2
Installation & Maintenance Instructions
6. Communication interface
The following paragraph describes the input and output data available at the DeviceNet interface.
In all cases a parameter is called 'input signal' when data is sent from actuator to bus, vice-versa it
is called 'output signal' when data is sent from bus to slave.
6.1 Actuator commands
The commands are received from the DeviceNet network and are forwarded to the base card via the
internal data bus.
Output Assembly Instance: Class 4; Instance 101; Attribute 3
Byte
b7
0
Reserved
Reserved
1
Reserved
Reserved
2
3
Indication
Description
Open Command
When this bit is set to 1 an Open Command is issued to the actuator.
The open command is maintained during the whole movement from the start of the bus
command until the Open Limit has been reached. The open command is reset when a
STOP Command is received from the bus.
Close Command
When this bit is set to 1 a Close Command is issued to the actuator.
The close command is maintained during the whole movement from the start of the bus
command until the Close Limit has been reached. The close command is reset when a
Stop Command is received from the bus.
Stop Command
When this bit is set to 1 a Stop Command is issued to the actuator. A Stop Command
received from the bus resets both open and close commands.
Positioner Enable
When this bit is set to 1 the on-board positioner is enabled. The positioner is enabled
until this bit is set to 0.
Set point
The Setpoint received from the bus is used to produce the open or close commands to
the actuator as defined in paragraph 6.2.1: 'Positioning algorithm'.
6.2 Actuator status and indication
The status is received from the base card via the internal data bus and is reported to the DeviceNet network.
Input Assembly Instance: Class 4; Instance 100; Attribute 3
Byte
b7
0
Positioner
Intermediate
active
position
1
Monitor
Reserved
Relay
2
HW alarm
Mid travel
alarm
3
Reserved
Reserved
4
5
6
7
Pentair reserves the right to change the contents without notice
b6
b5
Reserved
Reserved
Reserved
Reserved
b6
b5
Motor
Fully
stopped
close
PDA
HW Mode
Active
Active
Motor dir.
Opt. loc.
alarm
cnt. alarm
Reserved
Reserved
LSB Current Position
MSB Current Position
Current Temperature
b4
b3
Positioner
Stop
Enable
Command
Reserved
Reserved
LSB Set point
MSB Set point
b4
b3
Actuator
Closing
moving
LOCAL
General
selected
ALARM
Strk. limit
Torque
alarm
CL alarm
Reserved
Reserved
Current Torque
page 4
b2
b1
Close
Open
Command
Command
Reserved
Reserved
Data Type
Range
Boolean
0-1
Boolean
0-1
Boolean
0-1
Boolean
0-1
Integer
0-1000
b2
b1
Opening
Fully
open
Not Oper
Not Oper
Close
Open
Torque
Pwr fail
OP alarm
alarm
High temp
Pos. Sen.
alarm
alarm
b0
E.U.
-
-
-
-
0.1%
b0
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