ProSoft Technology MVI69-HART - Manual (Page 49)

MVI69-HART ♦ CompactLogix Platform Ladder Logic
HART Multi-drop Master Communication Module User Manual
ProSoft Technology, Inc. Page 49 of 169
March 29, 2012
3.1.2 Module Status Data and Variables (HARTModuleDef)
All status and variable data related to the MVI69-HART is stored in a user-
defined data type. An instance of the data type is required before the module can
be used. This is accomplished by declaring a variable of the data type in the
Controller Tags Edit Tags dialog box. The following table describes the structure
of this object.
Name Data Type Description
GenStat HARTStat General status information
BP HARTBackplane Data to handle backplane logic
Auto_Poll HARTAutoPoll[10] Auto-PollData
ByteData SINT[1000]
BlockTransferSize INT
This object contains objects that define variables for the module and status data
related to the module. Each of these object types is discussed in the following
topics of the document.
Status Object (HARTStat)
This object stores the status data of the module. The HARTStat object (shown in
the following example) is updated each time a read block is received by the
processor. Use this data to monitor the state of the module at a "real-time" rate.
Name Data Type Description
Scan_Cnt INT Program Scan Counter
Product_Name SINT[4] Product Code
Rev_Level SINT[4] Revision
Op_Sys SINT[4] Operating system revision
Run_Number SINT[4] Run number
Blk_Rd_Count INT Number of block read transfers
Blk_Wr_Count INT Number of block write transfers
Blk_Parse_Cnt INT Number of blocks parsed by module
Blk_Resv INT Reserved
Blk_Cmd INT Number of command enable/disable blocks
Blk_Err INT Number of block errors
ChStat HARTCHStat[2] Channel Status Data
Within the HARTStat objects are objects containing the status information for
each application port (HARTCHStat). Refer to Status Data Definition (page 109)
for a complete listing of the data stored in this object.