Emerson 4500 Manuel D’Utilisation

Page de 70
Reference Manual
00809-0100-4027, Rev AA
December 2005
Rosemount 4500
3-22
AMS Applying a User Configuration
Any amount of user configurations can be created for the application. They 
can also be saved, and applied to connected devices or to devices in the 
Device List or Plant Database.
NOTE
When using AMS Revision 6.0 or later, the device to which the user 
configuration is applied, must be the same model type as the one created in 
the user configuration. When using AMS Revision 5.0 or earlier, the same 
model type and revision number are required.
To apply a user configuration perform the following procedure:
1. Select the desired user configuration in the User Configurations window.
2. Drag the icon onto a like device in AMS Explorer or Device Connection 
View. The Compare Configurations window opens, showing the 
parameters of the target device on one side and the parameters of the 
user configuration on the other.
3. Transfer parameters from the user configuration to the target device as 
desired, Click OK to apply the configuration and close the window.
Burst Mode
When configured for burst mode, the 4500 provides faster digital 
communication from the transmitter to the control system by eliminating the 
time required for the control system to request information from the 
transmitter. Burst mode is compatible with the analog signal. Because the 
HART protocol features simultaneous digital and analog data transmission, 
the analog value can drive other equipment in the loop while the control 
system is receiving the digital information. Burst mode applies only to the 
transmission of dynamic data (pressure and temperature in engineering units, 
pressure in percent of range, and/or analog output), and does not affect the 
way other transmitter data is accessed.
Access to information other than dynamic transmitter data is obtained through 
the normal poll/response method of HART communication. A HART 
Communicator, AMS or the control system may request any of the information 
that is normally available while the transmitter is in burst mode. Between each 
message sent by the transmitter, a short pause allows the HART 
Communicator, AMS or a control system to initiate a request. The transmitter 
will receive the request, process the response message, and then continue 
“bursting” the data approximately three times per second.
HART Communicator
To configure the transmitter for burst mode, perform the following step:
1. From the HOME screen, enter the fast key sequence for “Burst Mode.”
Fast Keys
1, 4, 3, 3, 3