Quest Controls BACnet T-Stat Manual de servicio descargar pdf (Pagina 290)

290 • List of all BACnet Properties in Native Operation

Inactive_Text

WAGO-I/O-SYSTEM 750

BACnet/IP Controller

6.33 Inactive_Text

Data Type CharacterString

Objects Binary input, Binary output

Description Binary Input:

This property, of type CharacterString, characterizes the in-

tended effect of the INACTIVE state of the Present_Value

property from the human operator's viewpoint.

The content of this string is determined locally, but it is in-

tended to contain a description of the ACTIVE state that can

be read by the user. For example, if the physical input is

connected to a switch contact, then the Inactive_Text prop-

erty might be assigned a value such as "Fan 1 Off". If either

the Inactive_Text property or the Active_Text property are

present, then both of them shall be present.

Binary Output:

This property, of the type CharacterString, characterizes the

intended effect, from the human operator's viewpoint, of the

INACTIVE state of the Present_Value property on the final

device that is ultimately controlled by the output. The con-

tent of this character string is locally determined, but it is in-

tended to contain description of the INACTIVE state that

can be read by the user. For example, if the physical output

is a relay contact that turns on a light, then the Inactive_Text

property might be assigned a value such as "Light Off". If

one of the optional properties Inactive_Text or Active_Text

is present, then both of these properties must be present.

6.34 Last_Restore_Time

Data Type BACnetTimeStamp

Objects Device

Description This optional property, of type BACnetTimeStamp, is the

time at which the device's image was last restored.

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Quest Controls BACnet T-Stat Manual de servicio Pagina 290