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Instruction Manual
9
• Serial I/O Interface: RS-232: TxD, RxD for data stream, no ow control
RS-232 (RTS/CTS): TxD, RxD for data stream, RTS/CTS for ow control
RS-232 (RTS/CTS, DTR/DSR): TxD, RxD for data stream, RTS/CTS for ow control.
DTR for socket status, DSR for socket open/close control
RS-485 (Half duplex): Half duplex RS-485 interface
RS-422 (Full duplex): Full duplex RS-422 interface
• Packet mode of serial input: Packet mode could be in enabled/disabled mode.
If packet mode is enabled, the data input from UART will be deferred until the
input buer is full, or NETRS2321E detects a 10-character packet gap and no more
characters have arrived. The block waiting time is extended, to avoid splitting the
complete packet.
• Device ID: User assigned ID number for NETRS2321E. Available ID range includes 0-65535
• Report device ID when connected: In TCP mode, if this parameter is enabled, every
time the socket is connected, NETRS2321E will immediately report its device ID in
the following formats:
Serial #1 - nnnnnA[LF][CR]
Serial #2 - nnnnnB[LF][CR]
Digital I/O - nnnnnC[LF][CR]
The total length is 8 bytes, where “nnnnn” is a 5-digit device ID, assigned by the user;
[LF] is decimal 10; [CR] is decimal 13.
• Setup password:Administration password used to login to the Controller Setup
page. It may be left as empty, or up to 15 characters long.
• Access password: During socket connection, the Access/Authentication password
may be empty or up to entered as 15 characters long. If the Access password is left
empty, authentication is disabled. Otherwise, the authentication will proceed as
normal. If authentication fails, or no password is supplied within 10 seconds, the
socket will be closed.