User manual
Reference  MVI56-HART ♦ ControlLogix Platform 
User Manual  HART Multi-drop Master Communication Module 
Page 92 of 171  ProSoft Technology, Inc. 
  October 13, 2011 
DB Byte 
Offset 
Type  Description  Byte 
Cnt 
Data 
Source 
Use of Data 
0  byte  Auto-polling command status bits  1  App  Status 
1  byte  Last first status byte received from 
device 
1  Resp  Status 
2  byte  Last second status byte received 
from device 
1  Resp  Status 
3  byte  Manufacture ID Code  1  CMD 0  LongAddress 
4  byte  Device Type Code  1  CMD 0  LongAddress 
5  byte  Minimum number of preambles  1  CMD 0  Msgconstruction 
6  byte  Universal Command Major Rev #  1  CMD 0  Msgchoice 
7  byte  Device Revision Level  1  CMD 0  Info 
8  byte  Software Revision Level  1  CMD 0  Info 
9  byte  Hardware Revision Level/Physical 
Signaling Code 
1  CMD 0  Info 
10  byte  Device Flags  1  CMD 0  Info 
11 to 13  byte  Device ID  3  CMD 0  Long Address 
14  byte  Minimum number of preambles to 
be sent with the response message 
from the slave to the master. 
1  CMD 0   
15  byte  Maximum number of device 
variables 
1  CMD 0  Info 
16 to 17  word  Configuration Change Counter  2  CMD 0  Info 
18  byte  Extended Field Device Status  1  CMD 0  Info 
19  byte  Primary variable units code  1  CMD 3  Cfg 
20  byte  Secondary variable units code  1  CMD 3  Cfg 
21  byte  Tertiary variable units code  1  CMD 3  Cfg 
22  byte  Quaternary variable units code  1  CMD 3  Cfg 
23 to 30  byte  Tag name  8  CMD 13  Info 
31 to 46  byte  Descriptor  16  CMD 13  Info 
47 to 49  byte  Tag/Descriptor data  3  CMD 13  Info 
50 to 52  byte  Transducer serial number  3  CMD 14  Info 
53  byte  Transducer limits and min span 
units code 
1  CMD 14  Info 
54  byte  PV alarm selection code  1  CMD 15  Info 
55  byte  PV transfer function code  1  CMD 15  Info 
56  byte  PV upper and lower range value 
units code 
1  CMD 15  Info 
57  byte  Write protection code  1  CMD 15  Status 
58  byte  Private label distributor code  1  CMD 15  Info 
59  byte  PV analogchannel flag  1  CMD 15  Info 
  TOTAL BYTE COUNT  60   
TOTAL WORD COUNT  30 










