Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual - Manual (Page 254)

214 Rockwell Automation Publication 1766-UM001H-EN-P - May 2014
Appendix F MicroLogix 1400 Distributed Network Protocol (DNP3)
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 MicroLogix 1400 does not
send Unsolicited NULL Response with RESTART IIN bit on startup.
When the selection is Enabled (Checked), the MicroLogix 1400 sends
Unsolicited NULL Response with RESTART IIN bit on startup.
Enable Confirmation
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default value
is Disabled (Unchecked).
When the selection is Disabled (Unchecked), the MicroLogix 1400 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.
When the selection is Enabled (Checked), the MicroLogix 1400 always sends
Response packets with the CON bit set in its header, which causes the DNP3
Master to send replies confirming that it received each Response packet without
error.