ProSoft Technology MVI69-HART - Manual (Page 104)

Reference MVI69-HART ♦ CompactLogix Platform
User Manual HART Multi-drop Master Communication Module
Page 104 of 169 ProSoft Technology, Inc.
March 29, 2012
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
[HART PORT 0]
Auto-Poll DB Address 400
Max Device Count 15
DB Address Status 3661
[HART PORT 1]
Auto-Poll DB Address 1200
Max Device Count 15
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 750 words for each
channel (15 devices x 50 words each) even though not all devices may be
present on the network.