IP Relay HWg-ER02b - Manual
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Port configuration in UDP mode
When UDP communication is
used, the remote address must
be specified here.
Otherwise, the communication
will be unidirectional. Data from
the IP Relay are sent only to the
specified address.
The
UDP/IP mode does NOT
support
:
-
NVT
commands
-
TEA
authentication
Challenge-response protocols
respond up to 40% faster.
====== Out IP Setup ======
S: Send to IP
192.168.0.252
U: Port
23
If the address in the S option is different from 0.0.0.0, the IP
Relay works as a Client/Server in the TCP mode. This means
that if
no TCP/IP connection is established
and the device
either receives serial port data (even a single byte) or the state
of its digital inputs changes (in the range allowed by the #T
option), the device periodically tries to initiate a TCP
connection as a
TCP Client
. The device remains in the
TCP
Server
mode in between attempts.
In the UDP mode, the IP Relay sends data from the serial port to this address/port. Control of digital
inputs and outputs in the UDP mode is governed by #E and subsequent parameters.
Set S = 0.0.0.0 to switch the converter to the
TCP Server
mode.
T: IP mode
TCP
Switches between TCP and UDP protocols. UDP communication is faster but prone to lost packets or out-
of-order delivery; therefore, it is only suitable for communication on a local network segment in a request-
response mode, usually to convert RS485 communication.
The “
broadcast Rcv
” parameter allows receiving broadcasts.
0: TCP
1: UDP with broadcast Rcv Off
2: UDP with broadcast Rcv On
