Execution; Cycle Type; Memory; Max Notify - Honeywell ST700 User Manual

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 transmitter actively sends alerts to
host/master. If it is not set, the host/master must poll for alerts.
Page 16 FOUNDATION Fieldbus ST 700 Pressure Transmitter User's Guide Revision 2.0