Rockwell Automation 2080-L50E-24AWB, Руководство пользователя, Страница: 74 / 390

74 Rockwell Automation Publication 2080-UM002N-EN-E - November 2022
Chapter 6 Micro870 Controller Distributed Network Protocol
When the selection is Enabled (Checked), Primary Frames from the controller are sent out with
the function code FC_CONFIRMED_USER_DATA (3). In this case, the controller waits for the
confirmation and may retry the Frame if it did not receive the confirmation from DNP3 Master
within the time Confirmation Timeout (x1 ms).
Send LL Confirmation
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default value is Disabled
(Unchecked).
When the selection is Disabled (Unchecked), the optional Secondary Frame is not sent out with
the function code FC_NACK (1) or FC_NOT_SUPPORTED (15).
When the selection is Enabled (Checked), the optional Secondary Frame is sent out with the
function code FC_NACK (1) or FC_NOT_SUPPORTED (15).
Confirmation Timeout (x1 ms)
When Request LL Confirmation is enabled, the controller waits to receive a confirmation frame
until this timeout has expired.
The valid range is 1…65535. Default value is 20.
Message Retries
When Confirmation Timeout (x1 ms) has expired and this parameter was non-zero value, the
controller tries to send retry packets.
The valid range is 0…255. Default value is 0.
Pre-transmit Delay (x1 ms)
The controller waits for the specified time before sending the packet.
The valid range is 0…65535. Default value is 0.
RTS Off Delay (x1 ms)
When the Control is set at Half Duplex Modem (CTS/RTS handshaking), this feature is enabled.
This specifies a time delay between the end of a transmission and dropping of the RTS signal.
The valid range is 0…65535. Default value is 0.
RTS Send Delay (x1 ms)
When the Control is set at Half Duplex Modem (CTS/RTS handshaking), this entry is enabled.
This specifies a time delay between the raising of the RTS and the initiation of a transmission.
The valid range is 0…65535. Default value is 0.
IMPORTANT Micro870 (2080-L70E-24Q x BN) controllers support this function only
when the DNP3 Master sends confirmed user data. This function is not
supported when the DNP3 Master sends unconfirmed user data.