Rosemount OCX 8800, Instruction Manual

Page: 110 / 266

Instruction Manual
IM-106-880, Rev 2.1
April 2017
OCX 8800
7-10
Alerts Alarms
AMS
Tab What does the
alert indicate?
Recommended
Action Description
Line Input Out of Transducer Device This alert Check line input The device power supply continuously monitors
Range Block: Alerts indicates that the power for proper the line input. Measured variations in the line
line input power voltage and input power are used to compensate the sensor
1) Line to the device is frequency. heater control and check for faulty line conditions.
Frequency outside the Refer to Section 8: Troubleshooting for details.
Error proper operating
2) Line Voltage limits.
Low
3) Line Voltage
High
Inter Board Transducer FF/ This alert Verify device is There is no communication possible between the
Communication Block: Device indicates a powered. Check the Fieldbus Output Board and
the device’s computer
Failure Alerts communication installation of the board.
Inter Board failure between Fieldbus Output
Communication the FF board and Board on its carrier
Failure the device. board. If the above
are OK, replace the
carrier board and/or
Fieldbus Output
Board.
Simulate Active FF/ This alert occurs The PWA active parameters can now be written.
Device when the PWA The resource block detailed status parameters
Alerts simulate mode is and the internal alerts in the Transducer Block
active. where the PWA active alarms originate can also
be written.
PWA Simulate
Setting PWA_SIMULATE to ON allow simulating the PWA parameters,
FAILED_ACTIVE, MAINT_ACTIVE and ADVISE_ACTIVE. “Allowing
Sim
ulating” means that these parameters get write permission and the host’s
written value is the only one which is used for parameter’s read back value.
The data which comes from the OCX 8800 is not used in this case.
Fieldbus/PWA Simulate
Fieldbus simulation and PWA simulation can be enabled and disabled using
the DD method. Use the "Transmitter Options" method to enable/disable the
Fieldbus or PlantWeb Alerts simulation.
Selecting “Fieldbus simulation” enables both the Fieldbus function block
simulation and
PWA simulation. Selecting “PWA simulation” enables
PlantWeb Alert simulation only.
The simulation feature should not be used for normal operations. This feature
is to be used by authorized personnel for testing or demonstration purposes
only.
Configure Simulation from AMS
Use the following procedure to configure PWA simulation using AMS.
Do not use the PWA Simulate feature for normal operations. When used improperly the
Simulate feature can alter, disable, or activate device alarms.