Table 9: Termination diagrams
Type of field device
Type of input/
output
Termination diagrams
Network Stat with Terminals
Addressable
SA Bus
NS8000 series sensors
SA Bus
Network Stat with Terminals
(Fixed Address = 199)
SA Bus
Input/Output wiring validation
The SNC includes integral wiring validation for onboard
Inputs/Outputs with a default state application. The SNC
controllers ship with a default state that can assist in
validating the wiring of the input and output terminals
prior to download of an application file. No special actions
need to be taken to make use of this feature. Apply power
to the SNC controller and connect to the device with
a Site Management Portal UI to view the integral I/O
points in the controller. The points are viewable under
the
Local Hardware
folder of the device and are named
according to the I/O they represent, for example UI-1. It
is possible to upload the default state application with the
Site Configuration Tool (SCT), as needed.
The default state creates I/O points for all connections
on the input and output terminals. It assumes all
Universal Inputs (UIs) are Nickel temperature sensors. All
Configurable Outputs (COs) are treated as Binary Outputs
(BOs) with an initial value of 0. The default state also takes
input from a Network Sensor at address 199. If there is
no connected Network Sensor, the startup of this default
state is delayed by 30 seconds as the controller attempts
to establish connection with the sensor.For more details
about the default state workflow, refer to information on
the FAN-410.
Note:
The SNC is not currently supported at MAP
Gateway release 5.1.
Setting the EOL switch
The network devices at the end of an FC Bus segment
must be set as network terminated devices. The SNC
has one red EOL switch labeled FC EOL for the FC Bus
connection that sets the engine as a network terminated
device on the bus.
To set a SNC as an FC Bus terminated device, position the
switch on the EOL switch to the
ON
position as shown in
Figure 9: FC Bus EOL switch: ON (Up) position
F4-SNC Installation Guide
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