Rockwell Automation PLC-5 Fieldbus Solutions for Integrated Architecture User Manual - Manual (Page 229)

Publication 1757-UM006A-EN-P - May 2002
Standard Function Block Parameters A-49
Vxxx Blocks No V parameters
Wxxx Blocks Table A.130 WRITE_ALM
Table A.131 WRITE_LOCK
Table A.132 WRITE_PRI
Classification Record
Description Represents alert that is generated if the write lock is cleared.
FF Data Type DS-72
Usage C/Alarm
Length 1, 3
Storage Dynamic
Remarks Read Only
The data type describes discrete alarms using the following five elements:
• Unacknowledged
• Alarm State
• Time Stamp
• Subcode
• Value
Classification Simple Variable
Description Used to disallow writes from anywhere, except to unlock/clear this parameter,
when it is locked/set. Inputs will continue to read.
FF Data Type Unsigned 8
Range 1: Unlocked
2: Locked
Usage C/Contained
Length 1
Valid Views VIEW_2
Storage Static
Remarks The operator can control PROGRAM and LOCAL access to this value.
Classification Simple Variable
Description Defines the priority of the alarm generated by clearing the WRITE_LOCK.
FF Data Type Unsigned 8
Range 0 to 63
Usage C/Alert Priority