Rockwell Automation Publication 2080-UM002M-EN-E - April 2022 87
Chapter 6 Micro870 Controller Distributed Network Protocol
Unsolicited Responses For Class2
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default
value is Disabled (Unchecked).
When the selection is Disabled (Unchecked), Unsolicited Response is disabled
for Class 2 events. To prevent overflowing of the event buffer, DNP3 Master
should poll for Class 2 events.
When the selection is Enabled (Checked), Unsolicited Response is enabled for
Class 2 events.
Enable Unsolicited For Class3
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default
value is Disabled (Unchecked).
When the selection is Disabled (Unchecked), Unsolicited Response is disabled
for Class 3 events. To prevent overflowing of the event buffer, DNP3 Master
should poll for Class 3 events.
When the selection is Enabled (Checked), Unsolicited Response is enabled for
Class 3 events.
Send Initial Unsolicited Null Response On Start Up
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default
value is Disabled (Unchecked).
When the selection is Disabled (Unchecked), the controller does not send
Unsolicited NULL Response with RESTART IIN bit on startup.
When the selection is Enabled (Checked), the controller sends Unsolicited
NULL Response with RESTART IIN bit on startup.
This selection is also used for sending the Restart IIN bit during Driver and
Channel configuration changes. See
Internal Indications on page 104 for more
information.
Enable Confirmation
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default
value is Disabled (Unchecked).
When the selection is Disabled (Unchecked), the controller sends Response
packets with CON bit set in its header under the following conditions only:
• When the response has Event data.
• When the response is multi-fragment response.
• When the Unsolicited Response is sent.
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