Allen-Bradley 1719 Ex I/O User Manual page 55

Figure 1 - 1719-IF4HB and 1719-CF4H Flow Chart
No
Device in
Scan List?
Send Command 0
Read Unique Identifier
Yes
Reply?
Send Command 3
or 9 to Read
Dynamic Process
Variable
Reply?
Yes
No
Remove Device
from Scan List
Rockwell Automation Publication 1719-UM001C-EN-E - August 2018
1719 Ex I/O HART Analog I/O Modules
Read Configuration
Yes
Information, Such as
Tag, Units, Range
No
Signal Configuration
Changed in Input Tag
Put Device in Scan List
Update Input Tag
Read
New
Configuration
Configuration
Information,
Indicated?
Yes
Such As Tag,
Units, Range
No
Signal Configuration
Changed in Input Tag
Process 1 Pass-
through Message
Chapter 5
55