GE Motor Protection System, LM10 instruction manual Connection Object, Class Code 5, Services

DEVICENET OPERATIONS						CHAPTER 5: COMMUNICATIONS
			Data formats for device inputs
	Bytes	Data Length		Name/Description		Data		Value
						Format
	22 bytes	1 word		Motor status		F22	---
		1 word		Cause of trip		F20	---
		1 word		Phase A current		UINT	⋅ 0.1 A
		1 word		Phase B current		UINT	⋅ 0.1 A
		1 word		Phase C current		UINT	⋅ 0.1 A
		1 word		Ground current		UINT	⋅ 0.1 A
		1 word		Voltage		UINT	volts
		1 word		Power factor		UINT	⋅ 0.01
		1 word		Power		UINT	⋅ 0.1 kW
		1 word		Average current		UINT	⋅ 0.1 A
		1 word		Current unbalance		UINT	%
	Assembly Object, Class Code 4, Instance 105
	Attribute	Access		Name/Description				Data Type		Value
	3	Get	Poll Data Group 4					see below		see below
				Data Formats for Device Inputs
	Bytes	Data Length		Bytes	Name/Description			Data		Value
								Format
	7 bytes	1 byte		1	Motor status		F21		---
		1 word		2 (Hi), 3 (Lo)	Phase A current		UINT		⋅ 0.1 A
		1 word		4 (Hi), 5 (Lo)	Phase B current		UINT		⋅ 0.1 A
		1 word		6 (Hi), 7 (Lo)	Phase C current		UINT		⋅ 0.1 A

5.1.7Connection Object

The connection objects manage the characteristics of each communication connection. There are three instances of the connection object in the device. Explicit connection

(< 50ms response), input/output connection poll, (< 10ms response), and input/output connection Cos/Cyc (< 10ms response)

Connection Object, Class Code 5, Services:

Code	Name and Description of Services Available to this Object
0x05	Reset the connection - restart timer
0x0E	Get_Attribute_Single: Returns the contents of the given attribute.
0x10	Set_Attribute_Single: Sets the contents of the given attribute

Connection Object, Class Code 5, Attributes:

Attribute	Access	Name/Description	Data	Value
none	---	---	---	---

Connection Object, Class Code 5, Instance 1 (explicit message connection):

Attribute	Access	Name/Description	Data Type	Value
1	Get	State	BYTE	0x03
2	Get	Instance_type	BYTE	0x00, 0x01
3	Get	Export class trigger	BYTE	0x83

5–52 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL