![Endress+Hauser Tankvision Multi Scan NXA83 Operating Instructions Manual Download Page 13](http://html1.mh-extra.com/html/endress-hauser/tankvision-multi-scan-nxa83/tankvision-multi-scan-nxa83_operating-instructions-manual_2407541013.webp)
Tankvision
Switch By System
Hauser
13
In operation the Host Redundant Link Control is connected to the Slave Redundant Link
Control of the other system, and vice-versa.
•
Network used for Control Ports
: The Multi Scan NXA83 automatically configures
network ports for redundancy. The Network address of the second Multi Scan NXA83
must be supplied in the Network Address field. Both Multi Scan NXA83 must be connected
to the same network, or have a Network Cross-over lead connected between the Ethernet
ports of the two Multi Scan NXA83. Connection using a Network Cross-over lead is not a
recommended method for Redundant Link since it prevents access to the Multi Scan
NXA83 operating system using a remote desktop connection.
•
No Control Ports Used
: If this option is selected both Multi Scan NXA83 will default to
Live polling mode. This option should
NOT
be used for
Switch By System
redundancy.
NXA83_Port-Configuration_Host-Comms
Next configure all field ports in the Host Comms page.
After the interfaces have been configured gauges may be configured with redundant
operation. To do this, select the gauge in the
Gauge Configuration
screen in the
Configurator tools, then set the COM port field to be the field port (i.e. the port that the
gauges are connected to) and the Backup COM port field to be the Host Redundant Link
Control port.