Page 36 Foundation Fieldbus RMA803 Remote Indicator User's Guide Revision 4
Execution
CYCLE TYPE
The parameter CYCLE_TYPE is a bit string that defines the types of cycles that are available for
the resource and supports scheduled and block execution. CYCLE_SEL allows the person doing the
configuration to indicate that one or more of these execution types can be used by the device.
MIN_CYCLE_T is the minimum time to execute a cycle; the minimum cycle time supported is 100
ms.
MEMORY
MEMORY_SIZE is the size of the resource for configuration of function blocks; it is represented in
kilobytes. SHED_RCAS and SHED_ROUT set the time limit for loss of communication from a
remote device. These constants are used by each function block and are configurable values.
MAX NOTIFY
The MAX_NOTIFY parameter value is the maximum number of alert reports that this resource can
send without getting a confirmation, and to control alert flooding, adjust the LIM_NOTIFY
parameter to a lower value. If LIM_NOTIFY is set to zero, no alerts are reported. The
CONFIRM_TIME parameter is the time for the resource to wait for confirmation of receipt of a
report before trying again.
FEATURES
The bit strings FEATURES and FEATURE_SEL determine optional behaviour of the resource.
FEATURES bit string defines the available features; it is read-only. FEATURE_SEL is used to
turn on an available feature by configuration.
Reports
If the Reports option is set in the Features bit strings, the Remote Indicator actively sends alerts to
host/master. If it is not set, the host/master must poll for alerts.
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