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W&T
Expanded services of the Com-Server
25�3
Com-Server reset
Factory default: 8888/TCP
The reset socket has been implemented in case the Com-
Server ever needs to be completely reset. If a connection is
opened on this port, the Com-Server immediately closes it
again and then performs a software reset.
1
The factory default port number under which this
service can be reached is configured and deactivated
in the menu branch
SETUP System
r
Setup TCP/IP
r
System
Port List
Use of the system password
If a system password has been configured (see section „Basic
Configuration of the Com-Server“), this must be null-termi-
nated (=[password] + 0x00) and sent to the Com-Server via
the Control Port within 2s after a connection has been suc-
cessfully opened. If the Com-Server does not receive a correct
or even any password within this time, it sends the message
PASSWD?
followed by a null byte (0x00) to the client and clo-
ses the TCP connection.
If no system password is configured, then as the example
shows the Com-Server immediately closes the TCP connection
as soon as it has been established and performs a port reset.
1
Following this reset all the buffer contents are
deleted and any still active connections are closed - the
Com-Server is in its base state! This reset can be performed
from any station and should be done only in extreme cases.
Summary of Contents for Com-Server++
Page 8: ...W T...
Page 26: ...26 W T Assigning the IP address...
Page 27: ...27 W T Subject to error and alteration 3 Supply voltage Com Server Com Server3x Isolated...
Page 30: ...30 W T Supply voltage...
Page 34: ...34 W T Network interface...
Page 41: ...41 W T Subject to error and alteration 6 LED displays Power Status Error LED Network LEDs...
Page 88: ...88 W T Packetizing serial datagrams...
Page 94: ...94 W T Mode TCP server...
Page 108: ...108 W T Mode TCP client...
Page 122: ...122 W T UDP bus mode...
Page 130: ...130 W T The Windows COM port redirector...
Page 138: ...138 W T Box to Box mode...
Page 154: ...154 W T Mode FTP client...
Page 164: ...164 W T Mode Telnet Client...
Page 182: ...182 W T OPC data transfer...
Page 186: ...186 W T Mode InQueueCopy...