ProSoft Technology MVI69-HART - Manual (Page 88)

Reference MVI69-HART ♦ CompactLogix Platform
User Manual HART Multi-drop Master Communication Module
Page 88 of 169 ProSoft Technology, Inc.
March 29, 2012
This sequence will continue until interrupted by other write block numbers sent by
the controller or by a command request from a node on the HART network or
operator control through the module’s Configuration/Debug port.
The following example shows a typical backplane communication application.
If the backplane parameters are configured as follows:
Read Register Start: 0
Read Register Count: 480
Write Register Start: 480
Write Register Count: 480
The backplane communication would be configured as follows:
Database address 0 to 479 will be continuously transferred from the module to
the processor. Database address 480 to 959 will continuously be transferred
from the processor to the module.
The Block Transfer Size parameter basically configures how the Read Data and
Write Data areas are broken down into data blocks (60, 120, or 240).