Справочник Пользователя для Omron CS1W-ETN11

The following table shows the communications service functions that are
available with the Ethernet Unit.

Function

Client 
to 
server

PC to PC

---

---

PC to host 
computer

---

Host com-
puter to 
PC

---

Data type

FINS commands (vari-
ous commands for I/O 
memory communica-
tions in the PC, chang-
ing the operating mode, 
reading and writing 
files, and so on)

Any data (PC’s internal 
I/O memory)

DOS files in File Mem-
ory (Memory Card or 
EM File Memory)

User-defined mes-
sages, error log infor-
mation, status 
information

Maximum data size

PC to PC: 1,980 bytes 
max.

PC to host computer: 
1,980 bytes max.

Host computer to PC: 
2,000 bytes max.

1,984 bytes max.

No particular limit.

User-defined mes-
sages: 1,024 bytes 
max.

Features

Enables control of PC 
and host computer that 
support FINS com-
mands.

Communications by 
standard TCP/IP and 
UDP/IP via Ethernet.

No need to set FINS 
addresses.

Files are read by 
means of simple com-
mands and applica-
tions from host 
computers with FTP 
client functions.

Ethernet Unit status is 
obtained by e-mail.

Notification of errors is 
received by e-mail.

Reference

By executing 
SEND(090), 

or CMND(490)

FINS command

RECV(098),

By executing 
CMND(490) or 
manipulating dedicated 
control switches in 
memory.

Any data

By executing 
SEND(090), 
RECV(098), or 
CMND(490)

Host computer (with 
FINS Gateway function)

FINS command

At PC: By executing 
CMND(490) or 
manipulating dedicated 
control switches in 
memory.

Host computer (without 
FINS Gateway function) 
(Passive open)

Any data

(Active open)

E-mail can be set to be 
sent when specified 
bits turn ON, when 
errors occur, or at 
fixed intervals.

Mail server

E-mail

By sending FINS 
messages from the 
host computer.

Host computer 
(with FINS Gate-
way function)

FINS command

At PC: By executing 
CMND(490) or 
manipulating dedicated 
control switches in 
memory.

Host computer (with-
out FINS Gateway 
function)
(Active open)

Any data

(Passive open)

FTP commands 
executed by 
host computer

Host computer

File