User manual

MVI56-HART ♦ ControlLogix Platform Configuring the MVI56-HART Module
HART Multi-drop Master Communication Module User Manual
ProSoft Technology, Inc. Page 37 of 171
October 13, 2011
Auto-Poll DB Address
0 to 3700
This parameter sets the starting address for the data obtained by the auto-poll feature.
Each device on a channel requires 50 words in the database. The data area selected
must not overlap any portion of the database used by other channels or the module.
Auto-Poll Swap Float
0 to 3
This parameter swaps the floating-point data values received by the auto-poll feature.
Swap Code Description
0 None - No Change is made in the byte ordering (1234 = 1234)
1 Words - The words are swapped (1234=3412)
2 Words & Bytes - The words are swapped then the bytes in each word are
swapped (1234=4321)
3 Bytes - The bytes in each word are swapped (1234=2143)
Depending on the host processor using the data, the proper swap code must be utilized
to present the data in the correct format.
Max Device Count
1 to 15
This parameter sets the maximum number of slave devices to be utilized for the auto-poll
feature. In point-to-point mode, the parameter should be set to a value of 1. In multi-drop
mode, the parameter should be set from 1 to 15 to represent the number of slave devices
attached to the channel.