Why can’t I assign an IP address through the serial port?

1. Regardless of the serial transmission parameters set for normal operation, the Web-IO expects for entering the “x” characters (=ASCII 120) on boot-up always the transmission format 9600 baud, 8 data bits, no parity.
2. The terminal program used should be configured to “no Handshake” for assigning the IP address. Although the Web-IO sets its handshake outputs RTS and DTR to enable level upon starting, non-fully wired serial cable can cause problems. For serial IP assignment we recommend using our tool Easyterm. Alternatively, it is of course also possible to use other serial terminal programs, such as e.g. Hyperterminal with direct connections to the relevant COM port.
3. The Web-IO responds only to lower-case characters “x” (=dec 120 = hex 78). If the CapsLock is inadvertently selected, the received characters will thus be ignored.

Additional information:

• Product Info for Web-IO
• Manual for Web-IO

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