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About this Manual, Continued
This manual contains the following sections.
Section 1 introduces the overall structure of an Ethernet network, outlines the features of the Ethernet
Unit, describes the communications protocols used by an Ethernet network, and provides basic pre-
cautions for use of an Ethernet network.
Section 2 provides an overview of the communications functions that can be used with the Ethernet
Unit.
Section 3 explains how to install the Ethernet Unit and make the initial settings required for operation.
Section 4 explains the system setup and the words allocated in the CIO Area and the DM Area for
Ethernet Unit operations.
Section 5 provides information on communicating on Ethernet networks and interconnected networks
using FINS commands. The information provided in the section deals only with FINS communications
in reference to Ethernet Units. FINS commands issued from a PC are sent via the SEND(090),
RECV(098), and CMND(490) instructions programmed into the user ladder-diagram program. Refer to
the CS/CJ-series CS1G/H-CPU@@
-E, CJ1G-CPU@@ Programmable Controllers Instruction Refer-
ence Manual (W340) for further details on programming these instructions.
Section 6 describes the functionality provided by the Ethernet Unit via the socket services.
Section 7 describes the functions provided by the FTP server.
Section 8 explains the Ethernet Unit’s mail function.
Section 9 describes functions that allow you to test communications.
Section 10 describes information and procedures that can be used to troubleshoot problems that
sometimes occur with Ethernet Unit and Ethernet communications.
Section 11 describes the FINS commands that can be sent to an Ethernet Unit and the responses that
are returned by the Ethernet Unit.
Various Appendices are provided for reference. Refer to the table of contents for a list of the appendi-
ces.
Name Cat. No. Contents
SYSMAC CS/CJ-series
C200H-PRO27-E, CQM1H-PRO01-E
CQM1-PRO01-E
Programming Consoles
Operation Manual
W341-E1-@ Provides information on how to program and operate CS/CJ-series PCs
using a Programming Console.
SYSMAC CS/CJ-series
CS1G/H-CPU@@
-EV1, CJ1G-CPU@@,
CS1W-SCB21-V1/41-V1, CS1W-SCU21,
CJ1W-SCU41
Communications Commands
Reference Manual
W342-E1-@ Describes the C-series (Host Link) and FINS communications com-
mands used with CS/CJ-series PCs.
SYSMAC WS02-CXPC1-EV3
CX-Programmer Ver. 3.1
Operation Manual
W414-E1-@ Provide information on how to use the CX-Programmer, a programming
device that supports the CS/CJ-series PCs, and the CX-Net contained
within CX-Programmer.
SYSMAC CS/CJ-series
CS1W-SCB21-V1/41-V1, CS1W-SCU21
CJ1W-CSU41
Serial Communications Boards and Serial
Communications Units
Operation Manual
W336-E1-@ Describes the use of Serial Communications Units and Boards to per-
form serial communications with external devices, including the usage
of standard system protocols for OMRON products.
!WARNING Failure to read and understand the information provided in this manual may result in per-
sonal injury or death, damage to the product, or product failure. Please read each section
in its entirety and be sure you understand the information provided in the section and
related sections before attempting any of the procedures or operations given.