Trend Log - Metasys - LIT-1201532 - Supervisory Device - NCE25 Network Control Engine - NAE55 Network Automation Engine - NAE35 Network Automation Engine - NAE85 Network Automation Engine - NAE45 Network Automation Engine

Dynamically Creatable: Yes

Dynamically Deletable: Yes

Table 1. Trend Log
Property Name	Required	Optional	Proprietary	Property ID	Data Type	Writable	Range
BUFFER_SIZE	X			126		X¹	2-5000
ENABLE	X			133		X
LOGGING_ TYPE	X			197		X¹
OBJECT_NAME	X			77		X
PROPERTY_ LIST	X			371
STOP_WHEN_ FULL	X			144		X
ACKED_ TRANSITION		X²		0
CLIENT_COV_ INCREMENT		X		127		X
COV_RESUBSC_ INTERVAL		X		128		X	Any value > 0
DESCRIPTION		X		28		X	64 characters max
EVENT_ DETECTION_ ENABLE		X		353
EVENT_ENABLE		X²		35		X³
EVENT_ MESSAGE_ TEXTS		X²		351
EVENT_ MESSAGE_ TEXTS_ CONFIG		X		352		X³	256 characters max
EVENT_TIME_ STAMPS		X²		130
INPUT_ REFERENCE ⁴		X		132		X¹
LOG_INTERVAL		X⁵		134		X
LOGGING_ TYPE		X		197		X¹
NOTIFICATION _CLASS		X²		17		X³	1–4,194,303
NOTIFY_ THRESHOLD		X²		137		X³
NOTIFY_TYPE		X²		72		X³
RECORD_ COUNT		X		141		X
RECORDS_ SINCE_ NOTIFICATION		X²		140
RELIABILITY		X		103
START_TIME		X		142		X
STOP_TIME		X		143		X
TRIGGER		X		205		X
ALARM_STATE			X	1006	Enumerated
AUTHORIZA- TION_ CATEGORY			X	908	Enumerated	X	0–249
BUFFER_STATE			X	2565	Enumerated
ENABLED			X	673	Boolean	X
EXECUTION_ PRIORITY			X	2197	Enumerated	X	0–3
INPUT_REF			X	545	Complex
INTRINSIC_ ALARMING_ DEFINED			X⁶	569	Boolean	X
ITEM_ REFERENCE			X	32527	Character String
NEXT_ TRANSFER_ COUNT			X	2553	Unsigned
REMOTE_ DESCRIPTION			X⁶	32519	Character String	X
REMOTE_ DEVICE_ADDR			X⁶	538	Complex
REMOTE_ OBJECT_NAME			X⁶	2564	Character String
RESPOSITORY_ ENABLED			X	2549	Boolean	X
ROUTE_ TRIGGER			X	2552	Boolean	X
SAMPLE_ INTERVAL			X⁵	2566	Unsigned	X
STATUS			X	512	Enumerated
TRANSFER_ SETPOINT			X	2550	Unsigned	X	1–5,000
USER_NAME			X	2390	Character String	X	400 characters max

¹ Not writable in all instances.

² Only present when intrinsic alarming is enabled.

³ Only writable when intrinsic alarming is enabled.

⁴ Named LOG_DEVICEOBJECTPROPERTY in the BACnet standard.

⁵ Log_Interval and Sample_Interval represent the same value in different units of time. Log_Interval is in hundredths of seconds and Sample_Interval (Johnson Controls proprietary) is in seconds. Both allow only whole seconds and round to the nearest second.

⁶ Not present in all instances.

Trend Log - Metasys - LIT-1201532 - Supervisory Device - NCE25 Network Control Engine - NAE55 Network Automation Engine - NAE35 Network Automation Engine - NAE85 Network Automation Engine - NAE45 Network Automation Engine - 9

NAE/NCE Protocol Implementation Conformance Statement