126
IEC101-104:
for power industry, similar with TCP in
function
Protocol
TCP or UDP
TCP
Connection Type
Long-lived or Short-lived
Long-lived
Keepalive Interval
User define
60
Keepalive Retry
User define, TOP connection is off when reaching retry
limit
5
Serial Buffer
Frame
User define
4
Pacaket Size
User define
1024
Force Transmit
Timer
User define
100
Parameters
Description
Default
Min Reconnect
Interval
User define
15
Max Reconnect
Interval
User define
180
Multi-server
Policy
Parallel: connect the center of destination IP address list
at the same time
Polling: connect to the first address in the list, if connect
fail, continue to connect next address until connect one
successfully, then stop.
Parallel
Source Interface
4 options; No need to choose
IP
Local IP Address
The device’s IP when source interface select “IP”.No
need to configure
None
Enable Debug
Click to enable
Off
Destination IP Address
Server Address
User define
None
Server Port
User define
None
Destination IP Addresses maximum 10.
DTU 2 configuration is same with DTU 1.
3.9.1.3 DTU Application Example
Example:
An IR900 shall be functioned with DTU for the intercommunication between it and server, and refer to
the following figure for topological graph.
