CP1H / CP1L Ethernet to Serial Adapter
APPLICATIONGUIDE
CP1W-ETN01-US
Application and Setup Guide
Revision 1.11
2/11/2009
Section 1: Introduction
This document explains the theory, operation & setup of the Omron CP1W-ETN01-US
Ethernet to Serial adapter.
The CP1W-ETN01-US is an Ethernet to Serial adapter that allows FINS Ethernet
devices to communicate with CP1H and CP1L PLCs. These devices include PCs with
CX-Programmer, NS series HMI products, and software packages that use Omron FINS
Gateway or Sysmac Gateway communications drivers. The adapter mounts in the
Option Board Slot on the front of a CP1H or CP1L PLC, and can be used in all CP1H /
CP1L PLCs with an available Option Board Slot.
Because the adapter is an Ethernet to Serial adapter, it will behave with the response
characteristics of a serial port, and with throughput and frame length limits associated
with serial communications protocols.
The CP1W-ETN01-US adapter converts incoming Omron FINS Ethernet commands to
CV Mode Hostlink commands, and delivers the commands to the PLC CPU. The
adapter then converts the CV Mode Hostlink response from the PLC CPU back to a
FINS Ethernet packet, and delivers it to the originating device (PC or HMI). This
conversion process can be used with either FINS UDP or FINS TCP, using UDP or TCP
port 9600.
If you will be using CX-Programmer to communicate to the adapter, you must have
CX-Programmer Version 8.0 or later installed. CX-One Version 3 includes CXProgrammer 8.0.
Page 2 of 8
Section 2: Applications
The CP1W-ETN01-US is an Ethernet to Serial adapter that has been designed to allow
the use of a single operator interface terminal (NS, NSA, Indusoft) as well as a single
instance of CX Programmer to communicate simultaneously to a CP1H or CP1L PLC.
The adapter will not support more than 2 simultaneous connections.
PLC to PLC communications using Ethernet are not possible, as the adapter only
functions as an Ethernet slave device.
Unlike Omron Ethernet modules for CS / CJ PLCs, the CP1W-ETN01-US is not capable
of routing messages through multiple FINS networks. The CP1W-ETN01-US must
communicate with a PC / NS HMI that is on the same FINS network as the PLC adapter
itself.
Page 3 of 8
Section 3: Ethernet to Serial Adapter Setup
The CP1W-ETN01-US is assigned a default IP address of 192.168.250.11. The IP
address can be changed using a web browser pointed to the IP address of the adapter.
A static IP address must be assigned to the PC’s Ethernet card for this purpose. Simply
enter the IP address of the adapter (192.168.250.11) in the web browsers address field
to access the configuration page.
If you would like to change the IP address of the adapter then enter the desired new IP
address (192.168.1.151 shown as an example), then click Apply Setting. Please
remember to take note of the new IP Address of the adapter (if you changed it).
Page 4 of 8
Section 4: PLC Setup
The CP1W-ETN01-US adapter uses 115,200, 8,1,N as the communications parameters
for the serial interface to the PLC. Configure the socket that is being used for the
CP1W-ETN01-US (Serial Port 1 = Socket 1, Serial Port 2 = Socket 2) for 115,200, 8,1N
as shown. This is configured through the Settings of CX Programmer on the Serial Port
1 or Serial Port 2 tab.
To maximize the throughput of the CP1W-ETN01-US, the amount of time per PLC scan
that is allowed for servicing communications ports should be increased. This is
accessed through the PLC Settings in CX Programmer. On the Peripheral Service tab,
uncheck the ‘default’ option, and enter 50 (5.0 ms). Remember to change operating
mode to: Program Mode. From PLC Settings, Go to Options, Transfer to PLC and then
cycle power to apply the changes.
Page 5 of 8
Section 5: Using CX Programmer with the CP1W-ETN01-US
To use CX Programmer with a CP1H or CP1L PLC Ethernet Adapter, you must have
CX-Programmer Version 8.0 or later installed. (CX-One Version 3.0 includes CXProgrammer 8.0). Select Ethernet as the Network Type. If Ethernet is not available
from the Network Type follow the instructions below**
**Please go to the folder on your PC:
C:\Program Files\OMRON\CX-Server\StaticData\StaticRoot\Devices\Ocplc\Cs1\CP1L\M
Rename the file in the folder from: StaticInfo.xml to old_StaticInfo.xml
(If you do not see the file and CX-One or CX-Programmer/Jr is installed, then Go to
Tools, Folder Options, View and make sure the file type is Shown and Not Hidden)
Please copy new file*: StaticInfo.xml to the following folder on your PC
C:\Program Files\OMRON\CX-Server\StaticData\StaticRoot\Devices\Ocplc\Cs1\CP1L\M
*File located at: Omron247.com under Document Search: CP1ETN.ZIP (both CP1
Ethernet Setup Guide and StaticInfo.xml included in zip file)
Restart the CX-Programmer program, and the Ethernet should now be visible up from
the Network Type pull down selection.
Page 6 of 8
Leave the FINS Source Address and Destination Address settings as 0, and set the
Frame Length to 500 (bytes).
On the Driver tab, specify the IP address of the CP1W-ETN01-US adapter.
192.168.250.11 is the address of the adapter when the unit is shipped and shown as an
example. If you have changed the IP address of the adapter to, please enter the new IP
address.
You can now work On-line with the adapter.
Page 7 of 8
Section 6: Using an NS Series HMI with a CP1W-ETN01-US
To use an NS series HMI with a CP1W-ETN01-US, it is necessary to limit the number of
functional objects on each screen to effectively limit the size of the FINS Ethernet
packet that will be sent to read the data from the PLC. No more than 20 functional
objects (bit lamps, pushbuttons, numeric / string displays, etc) should be used on any
screen.
Smart Active Parts can be used with the CP1W-ETN01-US module, but may result in
decreased performance. If Smart Active Parts are required in a application, a CP1H +
CJ1W-ETN21 should be used.
When adding the CP1H or CP1L PLC as a Host in CX Designer, specify the Host Type
as Sysmac-CS1/CJ1, the Network Address as 1, and the Node Address as the last
octet of the IP address of the CP1W-ETN01-US. 11 would be the Node Address if the
IP address were 192.168.250.11. If you have changed the IP Address of the adapter
please use the last octet of the new address.
Page 8 of 8
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