GE Motor Protection System, LM10 1 Poll Data Group, 2 Poll Data Group, 3 Poll Data Group, 5-46

DEVICENET OPERATIONSCHAPTER 5: COMMUNICATIONS

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Table 5–1: Poll Data Group 1

Bytes	Data Length	Name/Description	Data	Value
			Format
7 bytes	1 byte	Motor status	F21	---
	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

This data group can also be retrieved via explicit messaging to the Assembly object, class 4, instance 102, attribute 3.

Table 5–2: Poll Data Group 2

Bytes	Data Length	Name/Description	Data	Value
			Format
12 bytes	1 word	Motor status	F22	---
	1 word	Cause of trip	F20	---
	1 word	Average phase current	UINT	⋅ 0.1 A
	1 word	Ground current	UINT	⋅ 0.1 A
	1 word	Current unbalance	UINT	%
	1 word	Power	UINT	⋅ 0.1 kW

This data group can also be retrieved via explicit messaging to the Assembly object, class 4, instance 103, attribute 3.

Table 5–3: Poll Data Group 3

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	%

This data group can also be retrieved via explicit messaging to the Assembly object, class 4, instance 104, attribute 3.

Table 5–4: Poll Data Group 4

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

5–46 LM10 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL