HMI update 04/19/2018

The analog and digital points can now be configured for a secondary data source.

Example:
A PLC has a MODBUS TCP (Ethernet) connection and also a MODBUS RTU (RS-232, serial) connection.

A primary port (A) is configured for the TCP connection and a secondary port (B) is configured for the RTU connection.

Points (PP) are created using the primary port (A) as a source.
Points (SP) are created using the secondary port (B) as a source.

All the primary points (PP) are configured to access the appropriate secondary point (SP).

Graphics, logging, alarms are all configured for the primary points (PP).

The secondary points (SP) do not process alarms and should not be configured for other access.

The secondary points (SP) are only used in the primary point (PP) configuration.

Should the primary port (A) experience a communication failure the data collected by the secondary points (SP) is used as the data for the primary points (PP) until the primary port (A) communication failure is corrected.