The OPC UA technology allows Flexy 205 users to transfer data from connected control systems (via IO Servers) to higher systems via the OPC UA protocol. The Flexy can act both as OPC UA Server and OPC UA Client. As OPC UA Client, it can connect to OPC UA Servers (e.g. the SIMATIC S7-1500 PLC), read / write data from / to these systems, monitor it through an alarm system, log it to memory, display it through visualisation or send it to a control room via the Talk2M.
The diagram below shows how users (Window 1) connect to remote devices (Window 3) through the Talk2M cloud service and the Flexy 205. The Flexy 205 can also be used to transfer data from control systems to local programs and applications (Window 2).
ModularityThe Flexy 205 contains only two slots for inserting up to 2 Flexy extension cards. Unlike its predecessors, the Flexy 201–203, the Flexy 205 enables you to insert extension cards in either of the two slots (i.e. both slots support all the extension cards).
Flexy Extension Cards
- This card allows you to connect the Flexy 205 to the Internet and the Talk2M cloud service via 4G, LTE, 3G (HSPA/WCDMA) and 2G (GPRS/EDGE) mobile networks.
- For availability of cards supporting the AT&T and Verizon networks, please contact us.
- This card allows you to connect the Flexy 205 to the Internet and the Talk2M cloud service via GSM, 2G, 3G and 3G+ mobile networks.
- Pentaband UMTS/HSUPA modem, 7.3 Mbit/s download, 2 Mbit/s upload
- This card allows you to connect the Flexy 205 to the Internet and the Talk2M cloud service via WiFi
- 802.11 b,g,n WiFi Client
- This card provides your Flexy 205 with one MPI connector for connecting the SIEMENS S7-300/400 PLCs.
- 1x MPI port
- This card with two serial ports allows you to connect the Flexy 205 to devices with serial port.
- 1x RS232/422/485, 1x RS232
- This card features inputs and outputs – 8x DI, 4x AI and 2x DO.
- It enables you to monitor inputs of devices that are not connected to the PLC which is connected to the router.
- This card with three USB ports allows you to connect the Flexy 205 to up to 3 devices via USB port.
How to Set up the Flexy 205
When you have connected your computer to the router's LAN port, open a web browser and enter the Ewon's IP address (the default IP address for new Ewons is 10.0.0.53). You will then be asked to set your username and password (the default username and password for new Ewons is "adm").
In the top right corner, click on Wizards to easily set up your Flexy 205. In System, you set your Ewon's name and the username and password for its web interface. In Internet, choose the type of router Internet connection. In VPN, you set up access to the Talk2M cloud service. In Gateway, you set the router's serial port if the router contains it. Nevertheless, to easily set up your Flexy 205, simply run the Quick Launch Wizard, which will guide you through the whole process step by step.
A Comprehensive Summary on a Single Page
In the Summary tab, you can see a general summary with such information as Internet connection, the router's IP address, inserted extension cards and VPN connection status.
An Example of PLC Connection Setup
Below you can see how to set the IO Server for connecting the SIMATIC S7-300 PLC via Ethernet port.
An Example of Tag Configuration
In the Values tab, you can configure and monitor tags from connected S7-300 and S7-1500 PLCs (With the S7-1500 PLC, the Flexy 205 communicates via the OPC UA protocol.). This page also provides tags from the Siemens SENTRON power meter via the MODBUS protocol and the router's inputs and outputs (i.e. the router's FLX3402 extension card).
An Example of the Flexy 205's Integrated Web Visualisation
When you have successfully connected your Flexy 205 to a control system, you can display data from this system in the ViewON application. This free visualisation tool allows you to create simple visualisation screens, which support read as well as write operations. Simply import data from your Flexy 205 into the ViewON program and assign values to ready-made graphical objects and controls. You can also make use of graphs with live as well as historical data.
Setting Alarms, and Tag Types
The alarm system can be connected to digital (boolean) as well as analogue (0–100%) values. Alarm activation for boolean tags can be set to value 0 or 1. For analogue tags, there are four types of alarm levels – LowLow, Low, High and HighHigh.
Setting Alarms for a Boolean Tag
Setting Alarms for an Analogue Tag