Specifications

HART ♦ ProLinx Gateway Functional Overview
HART Master Driver Manual
Page 22 of 119 ProSoft Technology, Inc.
July 7, 2009
Multi-drop Mode Example:
The intent is to show when using Multi-drop mode how the Auto-Poll DB Address
and Max Device Count parameters should be used.
If the configuration file sets the following parameters:
Parameter Value Config File Section
DB Address Status 3660
Auto-Poll DB Address 400
Max Device Count 15
[HART PORT 0]
DB Address Status 3661
Auto-Poll DB Address 1200
Max Device Count 15
[HART PORT 1]
DB Address Status 3662
Auto-Poll DB Address 2000
Max Device Count 15
[HART PORT 2]
DB Address Status 3663
Auto-Poll DB Address 2800
Max Device Count 15
[HART PORT 3]
The HART database has the following structure.
The configuration file for this example shows that when the MAX Device Address
parameter is configured as 15, the module will reserve 800 words for each
channel (15 devices x 50 words each) even though not all devices may be
present on the network.