RC1xx - User Manual
10.3
Ethernet commands (RC120)
You can configure the RC120 through the Ethernet connection using UDP
or TCP/IP. You can download GardasoftMaint from
, which allows you to send commands to
configure your RC120.
10.3.1 Ethernet communication
Commands sent in UDP or TCP/IP from a computer to the RC120 must
be sent to destination port 30313. Replies to the source port have the
source port and destination port identities exchanged.
TCP/IP connections time out and close if they remain idle for more than 10
seconds. The host must send regular commands or ‘keep alive’ packets of
data to keep the connection open.
A carriage return (ASCII 13) character must be sent to terminate the
command line in case multiple TCP packets become joined.
10.3.2 Command structure
Commands are sent by the host (a PC connected to the network). The
command is returned by the RC120, together with any reply generated by
that command, in UDP or TCP/IP packets followed by
<LF> <CR>
. The
last character sent is the
>
prompt. Once this has been received, the host
knows the command has been completed.
For example, sending the
VR
command might get this reply:
If there is an error, a typical reply might be:
We recommend the host waits for the
>
prompt before sending the next
command; UDP communications are not guaranteed to arrive, so the host
software must be able to deal with lost messages.
When an error occurs, the host may request a reply message to be sent to
it by using the
GT
command.
Multiple commands can be entered on one line by separating them with a
semi-colon (
;
). The RC120 replies to the commands individually,
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