MACTek BULLET™ – User Manual
DM1101010UAB
Copyright 2009-2010
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Detailed Settings
HART Dynamic Variables
The Bullet appears as a HART device on both the wired-HART and WirelessHART
networks, and supports four HART dynamic variables. These can be read using
standard HART commands and are displayed in the Bullet DD.
HART Variable
WirelessHART Packets per Second
Primary Variable (PV)
Loop Current (mA)
Secondary Variable (SV)
Direct Power Voltage (V)
Tertiary Variable (TV)
Internal Temperature (C)
Quaternary Variable (QV)
Storage Voltage (V) (Internal to the Bullet)
Configure Power Mode (method)
The Configure Power Mode DD Method guides the user through the selection of the
proper power mode settings for their configuration.
Adapter Power
By Default, the Bullet is configured for loop powered operation with a 1.0V insertion
voltage drop. Through the DD, the power setting can be changed to set the insertion
voltage drop to 1.0V, 1.5V, 2.0V or 2.5V. The power mode setting can also be set to
several different direct power modes.
Adapter Power Setting
WirelessHART Packets per Second
Loop Powered - 1.0 V
5.79
Loop Powered - 1.5 V
12.65
Loop Powered - 2.0V
19.66
Loop Powered - 2.5V
26.66
Direct Powered – Max Bandwidth
101.40
Direct Powered – Power Save
26.66
Note: The value shown in WirelessHART Packets per second column is the value
reported back in HART Command 777. These values are preliminary and subject to
change.
Loop Powered
This allows for different StepVolt™ settings to be selected when operating in a loop
powered mode.
