BC9191 - First steps
Necessary components
- BC9191 or BC9191-0100
- Programming PC with TwinCAT 2 and Ethernet interface
- Wiring material
- A normal Ethernet cable between PC and BC9191
DIP switch settings
Set DIP switch 1 to ON, leave all other DIP switches OFF. A fixed IP address is used. Also set the double DIP switch to OFF. After setting the DIP switches, restart the BC9191.
The BC9191 then has the IP address 172.16.21.1
Set an appropriate IP address on your programmer PC. For example: 172.16.100.100 (SubNetMask 255.255.0.0).

Use the >Ping< command to check whether TCP/IP communication is available. Open the prompt (DOS box) and enter the following: Ping 172.16.21.1. If the ping is successful you can continue. If the ping is not answered the communication is faulty. Then check the Ethernet connection:
- proper Ethernet cable
- the DIP switch of the controller is switched on correctly
- the IP address is changed on the programmer PC.
Finding the Bus Terminal Controller with the TwinCAT System Manager
Start the System Manager. Select a new target system.

Click Search (Ethernet)...

Then click Broadcast Search. The Bus Terminal Controller now appears in the window. The host name is formed from the Bus Terminal Controller plus the last 3 bytes of the MAC ID and is therefore unique in your system. The MAC ID is printed on a label below the Bus Terminal Controller. Set the options button to IP Address and click Add Route. The Connected field should show a cross or "X". If a password query appears confirm with OK (leave blank). The password function is not implemented in the Bus Terminal Controller.
You can now select the Bus Terminal Controller. Click on the Bus Terminal Controller and confirm with OK.

Your Bus Terminal Controller with name and IP address is shown in red at bottom left in the System Manager. The field next to it should be blue and show Config Mode. If this is the case you can now scan the device. Right-click on I/O Devices then Scan Devices.

The System Manager should find 2 devices. The K-bus interface "Device 1 (BX-BK)" and the Ethernet interface "Device 2 (BC9191-0100)".
BC9191 in the System Manager

Under device 1 (BX-BK) you can configure the terminal connection and the integrated periphery.
Under device 2 (BC9191-0100) you can make the settings for the Ethernet interface and the PLC variables.
If you do not want to use the pre-installed PLC program for a three-stage fan controller (see chapter 6), you can insert your own program created with TwinCAT 2 PLC Control under PLC Configuration.