ACC-SVN100A-EN • LonTalk Communication Interface 49
Network Variable and Configuration Property Definitions
nciCoolSetpt
Default value for nviCoolSetpt, SNVT_temp_p, level 1
This configuration property sets the default Setpoint for the Leaving Chilled Water
Temperature (nviCoolSetpt), unless the configuration property nciDefaults = 1. When
nciDefaults = 1, the UC800 controller ignores the BAS value and chooses from other
available setpoints (external or front panel) based on internal arbitration rules.
• Range: Same as nviCoolSetpt
• Default: Invalid (0x7FFF)
• SCPT reference: SCPTcoolSetpoint (75)
nciDefaults
Default values, SNVT_switch, level 1
This configuration property determines which set of values will be used on power up and
communications failure. The choice is the stated default values or a list of manufacturer
specified values.
• Range:0–Use Stated Defaults
1–Use Manufacturer Specified Defaults
0xFF–Invalid (act with Default [1])
• Default: 1 = Use Manufacturer Specified Defaults
• SCPT reference: SCPTdefltBehave (71)
nciDefaults setting
nciDefaults setting Action at power-up
Action on communication loss
(nciRcvHrtBt timeout)
0—Use Stated defaults Set each of the nvis equal to the value that is
stored in their corresponding nci.
For each nvi individually, when it has not been
heard from for the Receive Heartbeat time, it
should be set back to the value that is in its
corresponding nci.
1—Use Manufacturer
Specified Defaults
Set each of the nvis equal to a value that we
hardcode in the LCI. Where possible this value
should be an invalid value that causes the
controller to use its front panel inputs. If this
is not possible, it should be a safe default.
For this project, the Manufacturer Specified
Defaults should be equal to the default value
for each of the nci's, which have this same
effect.
In this case, the nvis should not be changed.
We have defined Manufacturer Specified on a
Comm Loss to mean that we continue using
the last sent value.
0xFF Invalid (act with Default [1]) Invalid (act with Default [1])
