User manual
Ladder Logic  MVI56-HART ♦ ControlLogix Platform 
User Manual  HART Multi-drop Master Communication Module 
Page 56 of 171  ProSoft Technology, Inc. 
  October 13, 2011 
3.1.4  Auto-Poll Data (HARTAutoPoll) 
Auto-Poll Data (HARTAutoPoll) 
This data object contains the auto-poll data ready to be used by the user (multi-drop or 
point-to-point). First define where the auto-poll data will copied to in the MVI56-HART 
database using the DB AutoPoll Address parameter in the configuration file. Then copy 
the data from the MVI56-HART database into the CLX memory (HARTAutoPoll object) 
using the ladder logic. 
Name  Data Type  Description 
Auto_Poll_CMD_Status  SINT  Auto-Polling command status bits 
Last_Status_Byte  SINT  Last first status byte received from device 
Last_Second_Status_Byte  SINT  Last second status byte received from device 
Manufacture_ID_Code  SINT  Device's manufacture ID Code 
Device_Type_Code  SINT  Device Type Code 
Min_Preambles  SINT  Minimum Number of Preambles 
Universal_CMD_Major  SINT  Universal Command Major Rev# 
Device_Rev_Level  SINT  Device Revision Level 
Software_Rev_Level  SINT  Software Revision Level 
Hardware_Rev_Level  SINT  Hardware Revision Level 
Device_Flags  SINT  Device Flags 
Device_ID  SINT[3]  Device ID 
Min_Preambles_Resp  SINT  Minimum Preambles Count to Response 
Max_Number_Devices  SINT  Maximum Number of HART Devices in the network 
Config_Change_Count  INT  Counter for configuration change 
Ext_Dev_Status  SINT  Extended Field Device Status 
Primary_Var_Units  SINT  Primary Units Code 
Secondary_Var_Units  SINT  Secondary Units Code 
Tertiary_Var_Units  SINT  Tertiary Units Code 
Quaternary_Var_Units  SINT  Quaternary Units Code 
Tag_Name  SINT[8]  HART device Tag Name 
Descriptor  SINT[16]  HART device Descriptor 
Tag_Descriptor_Data  SINT[3]  HART device descriptor data 
Transd_Serial_Num  SINT[3]  Transducer Serial Number 
Transd_limits  SINT  Transducer limits 
PV_Alarms  SINT  PV Alarm counter 
PV_Transfer  SINT  PV Transfer counter 
PV_URLLRV_Units  SINT  PV upper and lower range value limits 










