Allen-Bradley 2080-LC20-20QWB User Manual page 99

Rockwell Automation Publication 2080-UM005B-EN-E - March 2015
Datalog Function (DLG) Block
The datalogging function block lets a user program to write run-time global
values into the datalogging file in microSD card.
DLG
Enable
TSEnable
CfgId
DLG Input and Output Parameters
Parameter Parameter
Type
Enable INPUT
TSEnable INPUT
CfgId INPUT
Status OUTPUT
ErrorID OUTPUT
DLG Function Block Status
Status Code Description
0 Datalogging IDLE status.
1 Datalogging BUSY status.
2 Datalogging COMPLETE SUCCEED status.
3 Datalogging COMPLETE ERROR status.
DLG Function Block Errors
Status Code Name
0 DLG_ERR_NONE
1 DLG_ERR_NO_SDCARD
2 DLG_ERR_RESERVED
3 DLG_ERR_DATAFILE_ACCESS
4 DLG_ERR_CFG_ABSENT
5 DLG_ERR_CFG_ID
6 DLG_ERR_RESOURCE_BUSY
Status
ErrorID
Data Type Description
BOOL Datalogging 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.
BOOL Date and timestamp logging enable flag.
USINT Configured dataset (DSET) number (1...10).
USINT Datalogging function block current status.
UDINT Error ID if DLG Write fails.
Description
No error.
microSD card is missing.
Reserved.
Error accessing datalog file in microSD card.
Datalog configuration file is absent.
Configuration ID is missing in datalog
configuration file.
Same Configuration ID is used with other
datalog function block call at the same time
Using microSD Cards Chapter 9
91