Allen-Bradley 2080-LC20-20AWB, User Manual

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Rockwell Automation Publication 2080-UM005E-EN-E - March 2018
Chapter 9 Using microSD Cards
Data Log Function (DLG) Block
The data logging function block lets a user program to write run-time global
values into the data logging file in microSD card.
DLG Input and Output Parameters
Parameter Parameter
Type
Data Type Description
Enable INPUT BOOL Data logging write function enable.
On rising edge (that is, Enable value is triggered from
low to high), the function block executes. The
precondition for execution is that the last operation
has completed.
TSEnable INPUT BOOL Date and timestamp logging enable flag.
CfgId INPUT USINT Configured dataset (DSET) number (1…10).
Status OUTPUT USINT Data logging function block current status.
ErrorID OUTPUT UDINT Error ID if DLG Write fails.
DLG Function Block Status
Status Code Description
0 Data logging IDLE status.
1 Data logging BUSY status.
2 Data logging COMPLETE SUCCEED status.
3 Data logging COMPLETE ERROR status.
DLG Function Block Errors
Status Code Name Description
0 DLG_ERR_NONE No error.
1 DLG_ERR_NO_SDCARD microSD card is missing.
2 DLG_ERR_RESERVED Reserved.
3 DLG_ERR_DATAFILE_ACCESS Error accessing data log file in microSD card.
4 DLG_ERR_CFG_ABSENT Data log configuration file is absent.
5 DLG_ERR_CFG_ID Configuration ID is missing in data log
configuration file.
6 DLG_ERR_RESOURCE_BUSY Same Configuration ID is used with other data
log function block call at the same time
DLG
Enable
TSEnable
CfgId
Status
ErrorID