Reference Manual
00809-0200-4420, Rev HC
Appendix D: Redundancy
July 2015
76
Redundancy
D.5 Diagnostics
The redundant system will perform many diagnostic checks to verify the health and
connectivity of the system. In the event of a failure, it can take up to 30 seconds for the Gateway
to trade positions.
Figure D-7. Redundancy Status (Diagnostics>Advanced>Redundancy Status)
These diagnostics can also be mapped to Modbus registers or OPC tags. The following table
covers what diagnostics are included on the Redundancy Status page as well as how they can be
mapped as parameters in Modbus or OPC.
Table D-1. Redundancy Diagnostics
Parameter Description Data type
REDUNDANT_HEALTHY Overall redundancy status indicating the system is ready for a switch-over Boolean
RF_COVERAGE_FAILURE Check to verify that both Gateways have the same RF coverage of the
wireless field network
Boolean
REDUNDANT_A_ONLINE Operational status of Gateway A Boolean
REDUNDANT_A_MASTER Indication if Gateway A is the active system Boolean
REDUNDANT_A_PING Indication if Gateway A is able to ping designated host IP address Boolean
REDUNDANT_A_ETH0 Electrical connection status of the primary Ethernet port for Gateway A 8-bit unsigned int
REDUNDANT_B_ONLINE Operational status of Gateway B Boolean
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