242 Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Appendix F MicroLogix 1400 Distributed Network Protocol
For instance, if Prototype 0 includes a Namespace at Index 2 and Name at
Index 3, then the first DAEL in the Prototype 0 is at Index 4. The Prototype
DAEL at Index 4 matches Point Address 4 in the PTYP element configuration.
Because of this, Point Address 4 in the PTYP element configuration of the
Descriptor should be configured properly.
Object Quality Flags
The object flag is composed of an 8 bit string for some DNP3 objects. The tables
below show Flag Descriptions for each object. The ONLINE, RESTART,
COMM_LOST, REMOTE_FORCED and LOCAL_FORCED flags are common to
all object group types that contain flags.
There are some rules for the Object flag set or clear for each bit by the
controller. The rules below are also applied to Event data.
• When the controller is in Non-executing mode, the object flag is always
all 0.
• When the controller is in Executing mode and there is no configuration
file, only the Online flag in the object flag is set.
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