Communications Functions - Omron CS1W-ETN01 Operation Manuals

Communications Functions

2-1 Communications Functions
Function
communications
Client PC to PC By executing
to SEND(090), RECV(098)
server or CMND(490)
PC to host By executing
computer SEND(090),
RECV(098), or
CMND(490)
Host By sending FINS
computer messages from the
to PC host computer.
Data type FINS commands
(various commands for
I/O memory
communications in the
PC, changing the
operating mode,
reading and writing
files, and so on)
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.
Features Enables control of PC
and host computer that
support FINS
commands.
Reference Section 5 FINS
Communications
12
The following table shows the communications service functions that are avail-
able with the Ethernet Unit.
FINS Socket services
By executing
CMND(490) or
manipulating dedicated
control switches in
FINS command
memory.
At PC: By executing
CMND(490) or
manipulating dedicated
control switches in
memory.
Host computer (with
FINS Gateway function)
FINS command
(Active open)
At PC: By executing
CMND(490) or
manipulating dedicated
control switches in
Host computer
(with FINS Gate- memory.
way function)
FINS command
(Passive open)
Any data (PC's internal
I/O memory)
1,984 bytes max.
Communications by
standard TCP/IP and
UDP/IP via Ethernet.
No need to set FINS
addresses.
Section 6 Socket
Services
FTP server
---
Any data
---
Host computer (without
FINS Gateway function)
(Passive open)
Any data
FTP commands
executed by
host computer
Host computer (with-
out FINS Gateway
function)
(Active open)
Any data
DOS files in File
Memory (Memory Card
or EM File Memory)
No particular limit.
Files are read by
means of simple
commands and
applications from host
computers with FTP
client functions.
Section 7 FTP Server
Section
Mail
---
E-mail can be set to be
sent when specified bits
turn ON, when errors
occur, or at fixed
intervals.
Mail server
E-mail
---
Host computer
File
User-defined
messages, error log
information, status
information
User-defined
messages: 1,024 bytes
max.
Ethernet Unit status is
obtained by e-mail.
Notification of errors is
received by e-mail.
Section 8 Mail
2-1