ProSoft Technology MVI69-HART User Manual
Page 45
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MVI69-HART ♦ CompactLogix Platform
Module Configuration
HART Multi-drop Master Communication Module
User Manual
ProSoft Technology, Inc.
Page 45 of 169
March 29, 2012
The user can configure the command parameters as described in the following
table.
Index
Parameter
Value
Observation
1
Enable
1
The command is sent continuously
2
Float DB
Address
300
The damping value response will be copied to the
internal database starting at word-address 300
(occupies addresses 300 to 301)
3
Poll Interval
0
The command is sent without any delay
4
Word Count
2
The command returns 10 words of floating point
data
5
Swap Code
3
The bytes in each returned floating point word are
swapped
6
Short Address 0
This command is sent to the Hart slave device using
short address 0
7
Function Code 34
The command function 4 (WRITE DAMPING
VALUE) is used in this example
8
Int. DB Address 320
The integer data will copied to the database word-
address 320
9
Word Count
1
The command returns 1 word of integer data
10
Swap Code
3
The bytes in each returned integer data will be
swapped
11
Use Long
1
This command executes using Long Address
12
Enable
Address
-1
This command does not use this feature
13
DB Done
Address
-1
This command does not use this feature
14
DB Write
Address
800
The floating point value located at byte-address 800
(word-address 400) will be used as the damping
value to be written to the HART device
15
DB Swap Code 3
The bytes in each returned integer data will be
swapped
16
Byte Count
4
The command will write 4 bytes (2 words) to the
HART device, since the damping value uses floating
point format (2 words)
17
Fixed Data
This command does not use this feature
The user would have to verify that addresses 300 and 320 are located inside the
Read Data area (read from the MVI database to the PLC processor). Address
400 would have to be located inside the Write Data area (written from the PLC
processor to the MVI database).