ProSoft Technology MVI56-AFC User Manual
Page 167
MVI56-AFC ♦ ControlLogix Platform
MVI56-AFC Backplane Communication
Liquid and Gas Flow Computer
User Manual
ProSoft Technology, Inc.
Page 167 of 316
February 25, 2011
11.2 MVI56-AFC Function Block Interface
The following table defines the various function blocks that that PLC programmer
may use to set up two-way data transfer between logic and the AFC module:
Function Block Type
Function Code
Overall Block Length
Meter-Specific
Null
0
User defined
No
Wall Clock
1
7 elements
No
Modbus Pass-Through
6
User defined
No
Meter Process Variable
8
12 elements
Yes
Meter Analysis
9
25 elements
Yes
Meter Type Fetch
10
2 elements
Yes
Meter & Site Signals
12
2 elements
Yes
Meter Archive Fetch
14
42 elements
Yes
Gateway Read
16, 17, 18, 19
User defined
No
Gateway Write
20, 21
User defined
No
Modbus Master
24, 25, 26
User defined
No
Meter Disable/Enable
28, 29
2 elements
No
Any of the above function blocks may be allocated to the 245 elements of the
data portion of the OBA in the order and quantity required by the end-user
application at the discretion of the logic programmer.