Introduction
This guide will show you how to configure the Omron CP1L-E for remote connection on a 3G/4G modem.
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Please refer to these Precautions and Terms and Conditions which relate to the information and program samples provided before proceeding
Please refer to these Precautions and Terms and Conditions which relate to the information and program samples provided before proceeding
Procedure
Step 1 - PC Configuration
Setup the PC so it has a static IP within the 192.168.250.XXX network. For this example, set it to 192.168.250.50
Right click the Windows (start button) in the bottom left corner of the screen and select Settings
Select Network & Internet
Change adapter options
Double click the Ethernet adapter in use and click on Properties.
Double click Internet Protocol Version 4 (TCP/IPv4) to open its properties. Make the IP address static by selecting Use the following IP address and entering the IP address and subnet mask:
IP address: 192.168.250.50
Subnet mask: 255.255.255.0
Then click Advanced to add additional subnet to the network adapter.
Click Add
Enter IP address for modem subnet:
IP address: 192.168.8.50
Subnet mask: 255.255.255.0
Click Add and OK to exit all the menus. The network adapter is now set up for both PLC and modem factory default IP ranges.
DeleteStep 2 - Modem Configuration
2.1 - Accessing the modem locally
The modem’s settings can be changed through a web browser – in this example Chrome is used.
Enter the IP address of the modem into the URL. By default, the IP address of the modem is
192.168.8.1. This will be changed to 192.168.250.31 for this example.
Login with:
Username: admin
Password: admin
Under Network - > LAN, give an appropriate host name – in this case router.
IP1: 192.168.250.31/24 (/24 sets the subnet to 255.255.255.0)
Click Save
2.2 - Network and SIM Setup
Under Network -> Modem click Add. Enable Auto-Dialup and give an Interface Name.
Ensure that the sim card in the modem is extranet enabled – call the service provider. In this example the sim card used is a Telstra extranet enabled 4G sim.
| APN: Service Code: Network Type: Connection Mode: |
telstra.extranet GPTEXB3 (linked to telstra.extranet) auto dhcp |
Click Save
Under Network -> Network Type set the following
|
Default Route: DNS Type: Interface Name: |
modem interface modem |
Then click Save.
2.3 - Configuring a Dynamic DNS
To utilise a dynamic dns, this example will use the free service duckdns.org. Configuring a static ip address with Telstra is expensive.
Head over to www.duckdns.org and create an account.
Under domains, add a new subdomain – for this example http://omronsydintercel.duckdns.org is used – click add domain
Back to the modem settings under Applications -> DDNS,
| DDNS Service: Service Provider: Token: Username: Password: User Domain: Update interval: |
Enable duckdns 0f9d3e59-fb7a-498e-b8d0-9cbdc28b33b6 (Token provided by duckdns) Use any (Not important) Use any(Not important) omronsydintercel.duckdns.org 120 |
Then click Save.
2.4 Port Forwarding
2.4.1 CP1L-E
To access the CP1L-E PLC remotely, we will need to port forward its IP address and port.
Under Forward -> NAT, click Add
|
NAT Type: Protocol: |
DNAT all |
| Original Address Type: Interface | |
|
Interface: Original Port: Mapping Address: |
modem 9600 (CP1L-E Ethernet Port) 192.168.250.1 (CP1L-E IP address) |
Click Save.
Port forwarding for the CP1L-E is configured and ready.
DeleteStep 3 - PLC Configuration
3.1 - Setting PLC LAN IP Address and Default Gateways
3.1.1 - CP1L-E - CX- Programmer
Open CX-Programmer and connect to the CP1L-E or create a new project with the CP1L-E.
Double click on Settings
Scroll over to the right until you see Built-in Ethernet and enter the following:
IP Address
IP Address: 192.168.250.1 (set the IP address of the CP1L-E – default 192.168.250.1)
Sub-net Mask: 255.255.255.0
Under the IP Router Table click Ins and enter
|
IP Address: Router’s IP Address: |
000 000 000 000 192.168.250.31 (Address of the modem) |
Click OK and close the Settings. Under PLC -> Work Online. Once connected online transfer to the controller PLC -> Transfer -> To PLC. Select ALL. After transferring, go offline and power cycle the PLC since the IP settings have been changed.
DeleteStep 4 - Remote PLC Connection
Now to connect remotely to the CP1L-E we firstly need to know the public IP address of the modem.
From Status -> Modem, we can see the IP Address: 123.209.230.50
From a ping test using cmd.exe, using ping omronsydintercel.duckdns.org we can see IP: 123.209.230.50
From duckdns website, for the omronsydintercel domain we can see current IP = 123.209.230.50.
In CX – Programmer, right click the PLC and select Change
Click on Settings for Network Type: Ethernet, under the Driver tab enter the public IP address. In this case it is 123.209.230.50 with the default port 9600 (the port we port forwarded to ip address 192.168.250.1) and click OK.
If all the settings are correct, we should be able to connect online to the PLC remotely, using the public IP address