Chapter 5: LogicPro and Modbus Reference
PPC-2000 User’s Guide
192
Watlow Anafaze
Doc.# 30002-00 Rev 2.3
Table 5.30
Alarm and Control Functionality
Alarm Acknowledge Flags
Each
Alarm Acknowledge
register contains a 16-bit word. When
an alarm occurs and it is not a control alarm, the corresponding
Alarm Acknowledge
bit is set equal to 1. The bit remains set even
if the corresponding alarm condition is corrected. Read the
Alarm Acknowledge
bits to determine if there are
unacknowledged alarms. Set bits to 0 to acknowledge the
corresponding alarm.
Table 5.31
Alarm Acknowledge
Alarm Enable Flags
Alarm Status
and
Alarm Acknowledge
bits are set when the process
variable crosses the process or deviation limit only when the
corresponding alarm enable bit set to 1. Set the alarm enable
bit to 1 for each alarm limit to be monitored. Set the alarm
enable bit to 0 to ignore the corresponding alarm.
Table 5.32
Alarm Enable/Disable
NOTE!
The range and precision of the process limits and
deviation offsets are the same as that of the
corresponding input. See Table 5.10 on page 170.
Value
Function
Description
0
Alarm
Standard alarm function. Digital output, if
set, activates on alarm, deactivates when
channel is not in alarm. Global alarm
output activates and requires alarm
acknowledgment to clear.
1
Control
Digital output, if set, activates on alarm,
deactivates when channel is not in alarm.
Global alarm output does not activate. No
alarm acknowledgment required to clear.
Value
Description
0
Acknowledged alarm
1
Unacknowledged alarm
Value
Description
0
Disable
1
Enable
Summary of Contents for Anafaze PPC-2000
Page 2: ......
Page 14: ...Table of Contents PPC 2000 User s Guide viii Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 24: ...List of Tables PPC User s Guide xviii Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 36: ...Chapter 1 Overview PPC 2000 User s Guide 12 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 112: ...Chapter 2 Hardware Installation PPC 2000 User s Guide 88 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 184: ...Chapter 4 Troubleshooting PPC 2000 User s Guide 158 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 296: ...Chapter 7 Specifications PPC 2000 User s Guide 268 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 310: ...Appendix A Modbus Protocol PPC 2000 User s Guide 282 Watlow Anafaze Doc 30002 00 Rev 2 3...
Page 311: ...Doc 30002 00 Rev 2 3 Watlow Anafaze 283 B Appendix B Declaration of Conformity...
Page 319: ...PPC 2000 User s Guide Glossary Doc 30002 00 Rev 2 3 Watlow Anafaze 291...
Page 320: ...Glossary PPC 2000 User s Guide 292 Watlow Anafaze Doc 30002 00 Rev 2 3...