2003-10-26 20:31:50 +01:00
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.TH "mbusd" 8 "26 October 2003" "mbusd @VERSION@"
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2003-09-27 15:35:19 +02:00
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.SH NAME
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2003-10-26 20:31:50 +01:00
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mbusd \- MODBUS/TCP to MODBUS/RTU gateway server
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2003-09-27 15:35:19 +02:00
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.SH SYNOPSIS
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.B mbusd
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.RB [ -h ]
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.RB [ -d ]
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.RB [ -v
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.IR level ]
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.RB [ -L
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.IR name ]
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.RB [ -p
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.IR name ]
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.RB [ -s
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.IR value ]
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.RB [ -P
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.IR number ]
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.RB [ -C
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.IR number ]
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.RB [ -N
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.IR number ]
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.RB [ -R
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.IR value ]
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.RB [ -W
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.IR value ]
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.RB [ -T
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.IR value ]
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.SH DESCRIPTION
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2003-10-26 20:31:50 +01:00
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\fImbusd\fR is MODBUS/TCP to MODBUS/RTU gateway server (currently master mode only is supported).
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2003-09-27 15:35:19 +02:00
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.SH OPTIONS
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.IP \fB-h\fR
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Usage help.
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.IP \fB-d\fR
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Instruct \fImbusd\fR not to fork itself (non-daemonize).
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.IP "\fB-v \fIlevel\fR"
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Specifies log verbosity level. 0 enables logging of errors only,
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1 also enables warnings and 2 enables information messages.
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If \fImbusd\fR was compiled in debug mode, valid log levels is up to 9,
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where log levels above 2 forces logging of information about additional
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internal events.
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.IP "\fB-L \fIname\fR"
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Specifies log file name. Value '-' forces log data output to STDOUT only if \fB-d\fR switch was given.
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.IP "\fB-p \fIname\fR"
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Specifies serial port device name.
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.IP "\fB-s \fIvalue\fR"
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Specifies serial port speed.
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.IP "\fB-P \fInumber\fR"
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Specifies TCP port number.
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.IP "\fB-C \fInumber\fR"
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Specifies maximum number of simultaneous connections.
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.IP "\fB-N \fInumber\fR"
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Specifies maximum number of request retries. 0 - no retries.
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.IP "\fB-R \fIvalue\fR"
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Specifies pause between requests in miliseconds.
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.IP "\fB-W \fIvalue\fR"
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Specifies response wait time in miliseconds.
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.IP "\fB-T \fIvalue\fR"
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Specifies connection timeout value in seconds. 0 - no timeout.
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.SH NOTES
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Because MODBUS RTU protocol have situations which can't straightforwardly
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translated into MODBUS/TCP protocol entities, \fImbusd\fR extends standard excepton codes set.
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In case of situation when \fImbusd\fR received response with invalid CRC and can't correct
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error by re-request, it return MODBUS/TCP packet with exception code 128. In case of situation
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when \fImbusd\fR can't receive response from MODBUS RTU device (e.g. addressed controller
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2003-10-26 20:31:50 +01:00
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is not present on the network), it return MODBUS/TCP packet with exception code 129.
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2003-09-27 15:35:19 +02:00
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.SH FILES
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.PP
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The default location of the \fImbusd\fR log file is:
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.PP
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/var/log/mbusd.log
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.SH BUGS
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Broadcast messaging on MODBUS network isn't supported.
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Please send bug reports to author.
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.SH AUTHOR
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Victor Antonovich <avmlink@vlink.ru>.
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.SH LICENSE
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This program is distributed under the BSD-like license, included in
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each source file. See also COPYING file in the installation directory.
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