Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual - Manual (Page 255)

Rockwell Automation Publication 1766-UM001H-EN-P - May 2014 215
MicroLogix 1400 Distributed Network Protocol (DNP3) Appendix F
Enable Time Synchronization On Start Up Only
Valid selections are Enabled (Checked) and Disabled (Unchecked). Default value
is Disabled (Unchecked).
This parameter used with Time Synchronization Interval (x1 mins).
When the selection is Disabled (Unchecked), the MicroLogix 1400 sets IIN1.4
bit on power up and every interval configured in Time Synchronization Interval
(x1 mins).
When the selection is Enabled (Checked), the MicroLogix 1400 only sets the
NEED_TIME Internal Indication bit (IIN1.4) upon startup.
Time Synchronization Interval (x1 mins)
This parameter used with Enable Time Synchronization On Start Up Only. Only
valid when Enable Time Synchronization On Start Up Only is Disabled
(Unchecked).
The valid range is 0…32767. Default value is 0. As long as it is set for greater than
0, the NEED_TIME Internal Indication (IIN1.4) bit will be set at startup and
then after every Time Synchronization Interval minutes.
When the parameter Enable Time Synchronization On Start Up Only is
Disabled (Unchecked) and the parameter Time Synchronization Interval (x1
mins) is configured to 0, IIN1.4 bit is never turned on.
Max Response Size
The MicroLogix 1400 sends Application Layer frame to fit in Max Response Size.
If the Response packet size is larger than this value, the MicroLogix 1400
fragments the Response packet.
The valid range is 27…2048 in bytes. Default value is 2048.
Confirmation Timeout (x1 ms)
When Enable Confirmation is enabled, the MicroLogix 1400 waits for
Application Layer Confirmation until the Confirmation Timeout (x1 ms) has
expired.
The valid range is 100…65535 in 1ms increments. Default value is 10000.
Number of Retries
This parameter is only for Unsolicited Response. If this value has the maximum
which is 65535, it means infinite retries of the Unsolicited Response.