Comparison With Previous Models - Omron SYSMAC CS1W-ETN21 Operation Manual

Comparison with Previous Models

1-7

Comparison with Previous Models

Item
Model number
Physical layer
Number of nodes
PLC maintenance via the Internet
Server specification
Communi- FINS com-
cations ser- munica-
vice tions
service
Mail functions
FTP server function
Socket services function
Automatic clock information
adjustment
Previous models
CS1W-ETN11
CJ1W-ETN11
10Base-T
126
Not possible to send FINS
commands from a personal
computer to the PLC via the
Internet.
Specification by IP address
only
Automatic IP Not possible for a computer
address acquisi- automatically acquiring IP
tion (DHCP cli- addresses to send commands
ent) by personal to the PLC and receive
computer responses.
FINS communi- Not possible
cations with per-
sonal computers
without fixed
node addresses
Handling TCP/ With FINS communications,
IP only UDP/IP possible.
Simultaneous Not possible
connection of
multiple applica-
tions in a per-
sonal computer
Mail send function only
Same
---
Not possible
New models
CS1W-ETN21
CJ1W-ETN21
100Base-TX, 10Base-T
254
Can send commands (including FINS com-
mands) by e-mail over the Internet from a
personal computer to the PLC (using the
mail receive function).
Specification by IP address or by host name
(using the DNS client function)
A computer automatically acquiring IP
addresses can send commands to the PLC
and receive responses.
(UDP/IP: By automatic generation
(dynamic) IP address conversion method;
TCP/IP: Automatic)
Possible (with Automatic allocation by
Ethernet Unit)
(Client FINS automatic node address allo-
cation function, TCP/IP only)
With FINS communications, both UDP/IP
and TCP/IP possible.
Possible (with both UDP/IP and TCP/IP)
E-mail attachments with I/O memory data
are now possible for the mail send function.
(SMTP client function, file attachment func-
tion)
With the mail receive function, commands
can be received from the PLC. (POP3 client
function, mail receive function)
The following features have been added to
the TCP socket services function:
• Use of keep-alive
• Number of bytes of data received for TCP
socket Nos. 1 to 8
• Status of TCP socket Nos. 1 to 8: Data
Received Flag
CPU Unit built-in clock can be adjusted from
SNTP server. (SNTP client function)
Section 1-7
27