Emerson 644 manual Featuressel, Maxnotify, PlantWeb Alerts, Failedalarms

Rosemount 644

Reference Manual

00809-0400-4728, Rev AA June 2011

The following table displays all possible configurations of the WRITE_LOCK parameter.

FEATURE_SEL			WRITE_LOCK		Write access
SW_SEL bit	WRITE_LOCK		Read/Write	DEFINE_WRITE_LOCK	to blocks
0 (off)	1	(unlocked)	Read only	NA	All
1 (on)	1	(unlocked)	Read/Write	NA	All
1 (on)	2	(locked)	Read/Write	Physical	Function
					Blocks only
1 (on)	2	(locked)	Read/Write	Everything	None

FEATURES_SEL

FEATURES_SEL is used to turn on any of the supported features. The default setting of the 644 does not select any of these features. Choose one of the supported features if any.

MAX_NOTIFY

The MAX_NOTIFY parameter value is the maximum number of alert reports that the resource can have sent without getting a confirmation, corresponding to the amount of buffer space available for alert messages. The number can be set lower, to control alert flooding, by adjusting the LIM_NOTIFY parameter value. If LIM_NOTIFY is set to zero, then no alerts are reported.

PlantWeb™ Alerts

The alerts and recommended actions should be used in conjunction with “Operation and Maintenance” on page 3-15.

The Resource Block will act as a coordinator for PlantWeb alerts. There will be three alarm parameters (FAILED_ALARM, MAINT_ALARM, and ADVISE_ALARM) which will contain information regarding some of the device errors which are detected by the transmitter software. There will be a RECOMMENDED_ACTION parameter which will be used to display the recommended action text for the highest priority alarm and a HEALTH_INDEX parameters (0 - 100) indicating the overall health of the transmitter. FAILED_ALARM will have the highest priority followed by MAINT_ALARM and ADVISE_ALARM will be the lowest priority.

FAILED_ALARMS

A failure alarm indicates a failure within a device that will make the device or some part of the device non-operational. This implies that the device is in need of repair and must be fixed immediately. There are five parameters associated with FAILED_ALARMS specifically, they are described below.

FAILED_ENABLED

This parameter contains a list of failures in the device which makes the device non-operational that will cause an alert to be sent. Below is a list of the failures with the highest priority first.

1.Electronics

2.NV Memory

3.HW / SW Incompatible

4.Primary Value

5.Secondary Value

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