Motorola V186 - Cell Phone - GSM System Planner Manual page 152

SCADA System Components
has an equivalent ModBus address according to some very simple yet rigorous rules;
therefore, the database in the MCP-M may easily be read, or written to, by the SCADA
Manager. The MCP-M's database is kept accurate by any combination of the
communication modes discussed in the Communication chapter. If the SCADA Manager
should change the contents of any database items defined as outbound (a control), that
change will automatically be sent to the associated RTU.
The MCP-M may be configured to periodically interrogate (poll) one or more RTUs to
collect some or all of the reportable data in those RTUs and to update the MCP-M
database accordingly. Multiple interrogation schedules may be defined: short time
intervals for the sites with more interesting data and less often for the other sites.
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