114 Rockwell Automation Publication 2080-UM002M-EN-E - April 2022
Chapter 6 Micro870 Controller Distributed Network Protocol
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.
• When the controller is in Executing mode and there is a configuration
file, the flags in the object flag are set according to the upper byte of the
configuration files.
Object Flags for Binary Input
Bit Offset Name Description
0ONLINE
0 when the controller is or was in Non-executing mode.
1 when the controller is or was in Executing mode and the configuration file
does not exist.
May be 1 when the controller is or was in Executing mode and the
configuration file exists.
1 RESTART Always 0. Not used.
2 COMM_LOST Always 0. Not used.
3 REMOTE_FORCED Always 0. Not used.
4 LOCAL_FORCED Always 0. Not used.
5 CHATTER_FILTER Always 0. Not used.
6 Reserved Always 0. Not used.
7 STATE Reflects point state of Binary Input point.
Object Flags for Double Binary Input
Bit Offset Name Description
0ONLINE
0 when the controller is or was in Non-executing mode.
1 when the controller is or was in Executing mode and the configuration file
does not exist.
May be 1 when the controller is or was in Executing mode and the
configuration file exists.
1 RESTART Always 0. Not used.
2 COMM_LOST Always 0. Not used.
3 REMOTE_FORCED Always 0. Not used.
4 LOCAL_FORCED Always 0. Not used.
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