Emerson Rosemount 752 FOUNDATION, Reference Manual, Page: 19 / 48

13
Reference Manual
00809-0100-4377, Rev CA
Configuration
January 2018
Configuration
The following table displays all possible configurations of the WRITE_LOCK parameter.
FEATURES_SEL
FEATURES_SEL is used to turn on any of the supported features. The default setting of the Rosemount
752 does not select any of these features. Choose one of the supported features if any.
2.8.2 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.
2.8.3 Plantweb
™
alarms
The alarms and recommended actions should be used in conjunction with Section 4: Troubleshooting .
The Resource Block will act as a coordinator for PlantWeb alarms. 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 indicator software. There will be a RECOMMENDED_ACTION
parameter which will be used to display the recommended action text for the highest priority alarm.
FAILED_ALARM will have the highest priority followed by MAINT_ALARM and ADVISE_ALARM will be the
lowest priority.
FEATURE_SEL
HW_SEL bit FEATURE_SEL
SW_SEL bit SECURITY
SWITCH
WRITE_LOCK
WRITE_LOCK
Read/Write DEFINE_WRITE_
LOCK
Write
access to
blocks
0 (off) 0 (off) N/A 1 (unlocked) Read only N/A All
0 (off) 1 (on) N/A 1 (unlocked) Read/write N/A All
0 (off) 1 (on) N/A 2 (locked) Read/write Physical
Function
Blocks only
0 (off) 1 (on) N/A 2 (locked) Read/write Everything None
1 (on) 0 (off)
(1)
1. The hardware and software write lock select bits are mutually exclusive and the hardware select has the highest priority. When the HW_SEL bit if set to 1 (on), the
SW_SEL bit is automatically set to 0 (off) and is read only.
0 (unlocked) 1 (unlocked) Read only N/A All
1 (on) 0 (off) 1 (locked) 2 (locked) Read only Physical
Function
Blocks only
1 (on) 0 (off) 1 (locked) 2 (locked) Read only Everything None