Input/Output instructions Chapter 15
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015 373
The Data Logging Function Block can be used to write variable values from the
run-time engine into a Data Logging File on an SD Card.
Important:
When writing to a data log a maximum of 50 group folders are allowed per day. Each group folder has a maximum of 50 files with a file size of 4k-8k.
DLG operation
• DLG is supported for Micro820 controllers only.
DLG arguments
Parameter Parameter type Data type Description
Enable Input BOOL Datalogging write enable.
If Rising Edge Enable is triggered from "False" to "True," data logging function block will
execute if the previous FB operation is completed.
TSEnable Input BOOL Date and time stamp logging enable flag.
CfgID Input USINT Data logging configuration VA ID number from 1-10.
ENO Output BOOL Enable out.
Applies only to LD programs.
Status Output USINT Data logging function block current status.
See DLG status codes on page 375.
ErrorID Output UDINT FB error code, refer to Data logging FB error ID.
See DLG error codes on page 375.
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