2410
Model 2410 is a compact open-frame module that interfaces 48 general-purpose TTL/CMOS digital input/output (DIO) signals to Ethernet. It features edge detection, PWM output mode and other functions that offload work from the host computer in measurement and control applications.
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Telnet
Timeouts
I disabled the 2410 communication watchdog timer but the connection still times out after 5 minutes. Why is this happening?
The 2410's communication watchdog is disabled by sending wto 0 to it. However, most telnet clients also have their own inactivity timer, which is set to a default interval (typically 5 minutes). Consequently, the telnet client will independently close the connection when the session is idle for longer than its own timer interval. To resolve this, you must reconfigure your telnet client to use a different interval.
Remote echo
The 2410 seems to be retransmitting every TCP packet. Why is this happening?
By default, the 2410 echoes all incoming data. To turn off the remote echo function, have your telnet client issue an IAC DONT ECHO command to the 2410.
Command line functions
Where can I find information about the 2410's telnet commands?
Please see Sensoray Model 2410 Command Line Protocol.