Page 98 - GuardII+ Series 4208 Platform PD User Manual

Appendix

For those that have worked with the older GuardII+ continuous monitor, the Modbus
registers are the same for the GuardII+ Series 4208 Platform with two exceptions:
• There are new data registers containing overall monitor status; refer to Section 8.2.2.

• The functionality of the Measurement Status and Measurement Quality addresses in
the older GuardII+ have been combined into a single Measurement Status address.
Refer to Section 8.3.1 for details on how to use the new Measurement Status data.

8.2.2. GuardII+ Overall Status Modbus Data
These Modbus addresses are common to all GuardII+ monitors regardless of the
monitoring technologies that are installed. This data is updated after every diagnostic cycle
and when the Alert state changes. For a monitoring technology that is not installed, the Alert
status of that technology will always be reported as ‘no Alert’.

Address Alert Notes
64000 Year The year of the last update
Expressed in 4 digits (i.e., 2019)
64001 Month The month of the last update
1 = January … 12 = December
64002 Day The day of the month of the last update
64003 Hour The hour of the last update
Expressed in 24-hour mode (0-23)
64004 Minute The minute of the last update
0-59
64005 Second The second of the last update
0-59
64006 Diagnostic Status The current diagnostic state of the monitor.
0 = OK
1 = Error detected
64007 Alert Relay State The current state of the Alert Relay.
0 = The relay is open
1 = The relay is closed
64008 Alert Status The overall Alert state of the monitor.
0 = No Alert detected
1 = One or more monitoring technologies
are reporting an Alert
2 = One of the Alert Test Modes are
currently active.
64009 Partial Discharge Alert Status The current Partial Discharge Alert state.
0 = No Alert detected
1 = PD Alert detected
64010 Endwinding Vibration Alert The current Endwinding Vibration Alert state.
Status 0 = No Alert detected
1 = EV Alert detected

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