<
Toc
>
<
Ind
>
89
All Rights Reserved. Copyright © 2000, Yokogawa Electric Corporation
TI 04L01A01-02E
【
About Network
】
Question
Answer
What kind of network functions does
DX series have?
FTP is implemented.
It has FTP client and FTP server functions, which enable to transfer files via network.
How fast can we transfer data by
Ethernet compared with using RS
communication?
DX adopts 10BASE-T and its communication speed is 10Mbps.
DX RS communication speed is 38kbps.
It comes it is 260 times by simple calculation, however, it is difficult to say due to
network environment, PC, or DX data processing time.
It is an advantage of Ethernet that it can handle more devices simultaneously.
Is Ethernet communication more
reliable compared with RS
communication?
It is superior due to error detection or send-recovery functions provided by TCP/IP.
How can we connect DX and PC?
They are connected via HUB.
Between PC and HUB, and the HUB and DX are connected by straight 10BASE-T
cables. (Refer to “3.4.3
Network Configuration Example”)
How can we set DX IP address?
It can be set in SETUP mode from DX.
(Refer to “3.4.3
Network Configuration Example”)
How about FTP setting?
It can be set in SETUP mode from DX.
(Refer to “3.4.3
Network Configuration Example”)
Is it possible to transfer data at alarm
occurring?
Yes. It is possible to transfer event data files automatically by using Event-trigger in
Auto save mode.
Can DX communicate over Subnet?
Yes. It can communicate over Subnet.
Is it possible to access DX via public
phone line?
Yes, it is possible by using ISDN router or dial-up router.
There are various kinds of ISDN routers or dial-up routers to connect public phones
for home use to company use.