GE MN-ValVue-v2-8-IOM Manuel de service Page 51

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51
Configuring Burst Mode
ValVue Setup
Configuring Burst Mode
The Burst mode is a mode where the HART device continuously sends out data without
being polled 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 affects the communication bandwidth.
Figure 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.
Table 4 Burst Mode Data Return
Variable Description Units/Range
SVI II AP (firmware 3.1.1, 3.1.2, 3.2.1, 3.3.3 and 4.1.1), SVI II (Firmware 12x) or SVi1000 (1.1.1)
PV (Primary Variable): Valve position 0-100%
SV (Secondary Variable) Actuator Pressure 0-150psig
(0-120psig for firmware 12x)
TV (Tertiary Variable) Not used (Future)
QV (Quaternary Variable) Not used (Future)
SVI
PV (Primary variable): Valve position 0-100%
SV (Secondary variable) Actuator Pressure 0-150psig
TV (Tertiary variable) Process Variable According to device setting
QV (Quaternary variable) Controller setpoint According to device setting
HDLT
PV (Primary variable): Level According to device setting
SV (Secondary variable) Actuator Pressure 0-150psig
TV (Tertiary variable) Controller Setpoint According to device setting
QV (Quaternary variable) Board Temperature According to device setting
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