Thomas & Betts Limitorque MX Device Net Field Unit Transducer Attribute Scaled values attribute

Limitorque MX DeviceNet Field Unit  FCD LMENIM2328-00 – 11/05

Table 4.32 – Continued

Attribute ID

Access Rule

Name

Data Type

Description

Semantics of Value

41	RW	Valve_Type	USINT	Type of valve	0	= linear moving
					valve, sliding valve
					(Default) 1 = rotary
					moving valve, part-
					turn 2 = rotary moving
					valve, multi-turn
42	RO	Actuator_Type	USINT	Type of actuator	0	= electropneumatic
					1	= electric (default)
					2	= electrohydraulic 3
					= others
43	RO	Diagnostic_ Values_0	UINT	Reserved	Engineering Use
44	RO	Diagnostic_ Values_1	UINT	Main Voltage	Engineering Use
45	RO	Diagnostic_ Values_2	UINT	Actuator Position	Engineering Use
46		Diagnostic_ Values_3	UINT	Analog input #1	Engineering Use
47		Diagnostic_ Values_4	UINT	Analog Input #2	Engineering Use
48	RW	Tag_Name	SHORT-	Tag name for	String length is limited
			STRING	generic use	to 32 char. Default = 0
					(empty)
49	Get/Set	Comm_Loss_	USINT	Actuator action	0	= No Action
	(NV-RW)	Action		upon detection of	(Default)
				communication loss	1	= Open
					2	= Close
					3	= Stop
					4	= Preset Position
50	Get/Set	Comm_Loss_	UINT	Position to take	Range = 0 – 1000
	(NV-RW)	Position		upon a communica-	Default = 0
				tion loss
51	Get/Set	Comm_Loss_	UINT	Time to wait	Range = 0 – 4095
	(NV-RW)	Timeout		after detection of	Default = 255
				communication loss
				until actuator action
				is taken
52	Get/Set	Deadband	UINT	Deadband	Range = 0 – 1000
	(NV-RW)			percentage to use	Default = 2
				when positioning
53	Get/Set	Proportional_	UINT	Proportional band	Range = 0 – 1000
	(NV-RW)	Band		percentage to use	Default = 8
				when positioning
54	Get/Set	TQ_Switch_	USINT	Percentage of full	Range = 0 – 100 %
	(NV-RW)	Adjust		torque to limit	Default = 0 (Disabled)
				operation to
55	RW	Actuator_Control_	USINT	Configure actuator	1	= Analog
		Mode		for open/close	(Positioning Mode)
				or positioning	2	= Digital (Open/
				operation
					Close Mode)
					Default = 2

NOTE: Attributes 49-55 are reserved for Revision 1 to DeviceNet.

Table 4.33 – Transducer Attribute – Scaled values attribute 3

Bit 7 - 5

Unused

28

Bit 4

DDC Offset 0 = 0 mA 1 = 4 mA

Bit 3	Bit 2
ATT Polarity	Analog
0 = high	Torque
value 4 mA	Transmitter
1 = high	(ATT) 0
value 20 mA	= ATT
	Disabled 1 =
	ATT Enabled

Bit 1

APT Polarity 0 = high value 4 mA 1 = high value 20 mA

Bit 0

Analog

Position Transmitter (APT) 0

=APT Disabled 1 = APT Enabled