Technical Specifications

68 | =GE Oil & Gas

Configuring Burst Mode

The Burst Mode is a mode where the HART device continuously sends out data without being

polled for such data, by a Master. This mode is useful only for devices that are passive (i.e. not

a HART master), such as a HART to Analog converter (SPA from Moore Industries, Tri-Loop by

Rosemount). It is not necessary to set the burst mode to allow communications with a control

system since the control system is a master capable of polling the device. Turning on Burst

mode in cases where it is not required will affect the communication bandwidth.

Table 4 provides a summary of the data returned from the Burst mode (HART Command #3

equivalent to Process-Vars-Current).

Use this procedure to configure a burst mode.

1. Select the intended device from the Connected Devices page.

2. Right-click on the gray background of the window to pop up a context menu.

3. Select the Burst Mode Control dialog.

4. Select the desired command.

5. Select OK.

NOTE When burst mode is enabled, ValVue ESD DOES NOT allow the

detailed device view to open communications to the device.

Table 4 Burst Mode Data Return

Variable Description Units/Range

SVI II ESD (firmware 312)

PV (Primary Variable) Valve position 0-100%

SV (Secondary Variable) Actuator Net Pressure 0-150 psig

TV (Tertiary Variable) Not used (Future)

QV (Quaternary Variable) Not used (Future)