Rockwell Automation Publication 2080-UM002M-EN-E - April 2022 79
Chapter 6 Micro870 Controller Distributed Network Protocol
Stop Bits
The selections can be 1 and 2.
Default selection is 1.
Enable Master Address Validation
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default
value is Disabled (Unchecked).
When the selection is Disabled (Unchecked), the controller accepts the
requests from any DNP3 Master.
When the selection is Enabled (Checked), the controller accepts the requests
only from the DNP3 Master which is configured in the Master Node0…Master
Node4. The maximum number of Master Node Addresses for the Master
Address Validation is 5.
Enable Self-Address
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default
value is Disabled (Unchecked).
When this bit is Disabled (Unchecked), any packets which contain the
destination address 65532(FFFCh) are ignored.
When this bit is Enabled (Checked), any packets which contain the destination
address 65532(FFFCh) are accepted and processed.
Any responses back to the DNP3 Master includes the actual configured DNP3
address of the Micro870 controller.
Master Node0
This value is used to:
• validate the Master node address when the Enable Master Address
Validation is Enabled (Checked)
• send Unsolicited Response when Unsolicited Response functionality is
enabled. An Unsolicited Response is sent out to the DNP3 Master having
this address.
The valid range is 0…65519. Default value is 0.
Master Node1, Master Node2, Master Node3, Master Node4
The valid range is 0…65519. Default value is 0.
This value is used to check validation for Master node address when Enable
Master Address Validation is Enabled (Checked).
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