N2 Hardware Tab - Metasys - LIT-12011942 - "" - Software Application - Metasys Open Data Server - 10.1

Controller Type

C

AHU, VAV, UNT, PHX, VND, MIG, VMA, DX, TC, XTM, LCP, ILC, IFC

Defines the N2 controller type assigned to this object.

Disable Automatic Alarming

C,W

False

False

True

Specifies whether automatic online/offline device event reporting is disabled (True) or enabled (False). This attribute only applies to the device and not to the device’s mapped objects. Devices with the Disable Automatic Alarming attribute set to True suppress the alarm event but still indicate they are offline in the navigation tree with a red X. Alarm extensions are not affected by this attribute.

Error Log

W

See Table 2

Lists up to 100 error log entries. Each entry contains the N2 Controller Type, N2 Address, Error Description, and a Timestamp (time error occurred). Logging stops once the 100th entry is added. This list is stored in memory only. The Clear Statistics command clears the Error Log.

Host Name

Indicates the host name of the Ethernet (or wireless) converter. When a host name is given, the system attempts to resolve the Host Name and IP Address using DNS/DHCP (assuming that the installer assigned a host name to the converter and enabled DHCP). If the device can be located using the ping hostname command, the system can resolve the host name to an IP address. After resolving the host name, the system updates the IP address.

Interface Value

Indicates the current value from the hardware interface. The Interface Value updates when the hardware is read or when the hardware’s current value changes.

Message Timeout

W

250

250–3,000

Milliseconds

Specifies the delay in milliseconds between the last character going out and the first character received. The timeout for VMA devices is three times this value. The actual timeout can be extended dynamically when at least one character of a response message is received before the timeout.

Net N2 Address

C

0

1–254

Defines the host controller Address (1–254) on the N2 bus.

Net Point Address

Defines the hardware address associated with the point.

Net Point Type

Indicates the type of point (for example, AI or BI).

Offline

Offline (True), Online (False)

Indicates whether the hardware device is currently communicating with the system (True = Offline; False = Online).

Online Point Delay

C,W

Range = 0–8

Units = Minutes

Indicates the number of minutes that must elapse before bringing an N2 Controller online. This attribute allows integration devices, such as the MIG or VND, to gather status from their many field points before being reported online by the engine. With no delay, the N2 Controller reports unreliable and causes nuisance alarms. This timer is ignored when the Controller Type is not MIG or VND.

Overridden

Indicates whether the hardware device is currently overridden.

Poll Delay

W

100

0–65,535

Milliseconds

Specifies the time to wait in milliseconds for a response to an offline poll.

The Poll Delay attribute is writable only if UDP Port is not zero. If UDP Port is zero and you attempt to write Poll Delay, an error message appears.

Retries

W

3

3–10

Specifies the number of message retries allowed when the device is online, including the initial attempt. Only one retry is attempted to an offline device.

The Retries attribute is writable only if UDP Port is not zero. If UDP Port is zero and you attempt to write Retries, an error message appears

Trouble

Applies to BI and BO objects.

Indicates whether the hardware device is currently under a trouble condition. Applies to BI and BO objects.

Trunk Number

0–65,535

Specifies the number of the trunk on which the object resides.

UDP Port

W

0

Indicates the Ethernet UDP Port used for N2 communication over the IP network. The recommended UDP Port for N2 Trunk 1 is 4096 and for N2 Trunk 2 is 4097. Only valid on NAE5512 and NAE5513 models.