User manual
MVI56-HART ♦ ControlLogix Platform  Reference 
HART Multi-drop Master Communication Module   User Manual 
ProSoft Technology, Inc.  Page 143 of 171 
October 13, 2011 
COMMAND 45 - Trim DAC Zero 
Description 
This command calibrates the device Digital to analog converter zero. This is done by 
writing the same current value that is measured in the loop. 
Write Parameters 
Word  High Byte  Low Byte 
0  Floating Point measured current (mA) 
1 
Floating Point Data Returned 
Word  High Byte  Low Byte 
0  Floating Point Current (mA) 
1 
Integer Data Returned 
Word  High Byte  Low Byte 
0  STATUS WORD 










