Yokogawa µR20000 - Manual (Page 76)

Commands
1
2
3
4
5
6
App
Index
IM 04P01B01-17E
4-33
TCP: keepalive
Keepalive check cycle.
TCP: connects
Total number of connections established.
TCP: closed
Total number of dropped connections.
TCP: timeoutdrop
Total number of dropped connections
due to TCP retransmission timeout.
When the transmitted packet (the unit
of transmitted data) is not received, the
packet is automatically retransmitted at a
predetermined time interval. If the packet
is not received after 14 retransmissions,
timeout occurs and the connection is
dropped.
TCP: keepdrops
Total number of dropped connections due to
TCP keepalive timeout.
TCP: sndtotal
Total number of transmitted packets.
TCP: sndbyte
Total number of transmitted bytes.
TCP: sndrexmitpack
Total number of retransmitted packets.
TCP: sndrexmitbyte
Total number of retransmitted bytes.
TCP: rcvtotal
Total number of received packets.
TCP: rcvbyte
Total number of received bytes.
DLC: 16 collisions
Number of collision incidents. A collision
occurs when two or more instruments on the
network attempt to transmit simultaneously.
The tendency for collisions to occur
increases when the network is congested.
16 collisions would mean 16 consecutive
collision incidents.
quit Disconnects the connection of
the instrument being operated.
Syntax quit<terminator>
4.10 Instrument Information
Output Commands
(Available when using the
instrument information
server function via Ethernet
communications)
The instrument information server function
interprets one UDP packet to be one command
and returns a single packet (containing the
recorder’s information) in response to the
command.
Port number 34264/udp
(see section 2.1)
Transfer data ASCII
Received buffer length 128
Transmit buffer length 512
Maximum number of parameters 32
In the command packet, parameters
corresponding to the desired information are
placed one after another.
Parameter Description
serial
Outputs the serial number.
host Outputs the host name (the host name specified
in section 2.3).
ip Outputs the IP address (the IP address specified
in section 2.3).
Example Query the IP address and host name. (Of the
two frames below, the top frame represents the
command packet, the bottom frame represents
the response packet.)
ip host
EA
ip = 192.168.111.24
host = ABC
EN
Description • Separate each parameter with one or more
blanks (space, tab, carriage return, line feed).
• Parameters are not case sensitive.
• Undefined parameters are ignored.
• Parameters beyond the 32nd parameter are
ignored.
4.9 Maintenance/Test Commands/4.10 Instrument Information Output Commands