Introduction

The BMENOR2200H module’s event backup buffer can store events when power to the module stops.

Event Backup Characteristics

You can configure the module to record the events via data types upon a loss of power or a module hot-swap.

These are the storage capacities for events in flash memory for the BMENOR2200H module and the RTU protocol:

  • The module records up to 10,000 events into flash memory upon a loss of power.

  • The module records only the latest events when number of recorded events exceeds 10,000.

  • The module reads events from flash memory when power is restored.

Event Backup Behavior

The BMENOR2200H module has different backup behaviors in different cases. The type of case is defined from the user point view:

Case

Description

Event

1

Loss of power

power lost

Records events in non-volatile memory on loss of power.

2

Power start

power on/restore

Restores events when the RTU protocol starts.

3

Protocol restart

These actions clear the module event buffer:

  • The RTU protocol configuration changes.

  • The RTU receives a warm or cold start command from an RTU client.

  • The BMENOR2200H receives a RTU reset command from Device DDT.

Does not record events when the protocol exits.

Limitations

  • The BMENOR2200H module scans and stores events in each channel one by one. When the number of events exceeds the Flash memory capacity, the module records only the latest events.

  • Hot Standby systems does not support the event backup feature.