RC Systems ViewSmart 1600+, Operation Manual

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UM-1097
Revision B 42
count is incremented. After 3 scans fail, the redundant port takes over communication. If the redundant
port also fails 3 times, communication is switched back to the primary port. When both ports fail, the
ViewSmart 1600+ will continuously switch between primary and redundant port.
Individual channels do not enter Comm Error mode unless both primary and redundant port failures occur.
Manual tests can be performed on the redundant or primary port by going into the redundant port’s com
setting menu and selecting Test Redundant Port or Test Primary Port
.
While in this menu, the ViewSmart
1600+ also gives the active port on the screen.
4.5.3.1.1.1.5 Disabled
Select Disable to turn the port off if not needed.
4.5.3.1.1.2 Baud rate
This setting allows user to set the data rate of the communication port. The options include 9600, 19200,
38400, 57600, and 115200.
4.5.3.1.1.3 Parity
A Parity bit is a bit that is added to ensure the number of bits with the value of 1 in a set of bits is even or
odd. Parity bits are used as the simplest form of error detecting code. Default is None.
4.5.3.1.1.4 Timeout
The Master Timeout menu item affects the ViewSmart 1600+’s
master
Modbus® ports. Timeout is the
length of time in milliseconds the controller waits before a Modbus® request fails. Three consecutive
failed requests must occur before a communication error is indicated. This item is useful for optimizing
throughput to the ViewSmart 1600+ from other slave RTUs.
4.5.3.1.1.5 Poll Delay
The time in milliseconds the unit will delay between Modbus® master requests.
4.5.3.1.1.6 Sympathy Enabled
The sympathy feature allows multiple ViewSmart 400 controllers, communicating on the same
communication port, to go into an alarm condition simultaneously when any one ViewSmart 400
controller detects an alarm condition. If Sympathy Enabled is set to YES then the ViewSmart 1600+
controller, which is the master in the network, broadcasts alarm flags to all ViewSmart 400s in the
network. ViewSmart 400 controllers that are configured to react to these flags then energize their relays
configured to trip for that alarm. The following sympathy parameters only show up if sympathy is set to
Yes.