connected the ABB controller to the Anybus Communicator via the serial port. The Communicator is in turn connected to my computer so I can set up the configuration.
I start the Anybus Configuration Manager which is included in the product package from HMS and also downloadable from Anybus.com. Before I start, I can choose if I want to use the Wizard mode which includes a lot of default values and is a bit quicker, or start a blank configuration from scratch. I choose the Wizard mode which is the best for a Modbus RTU device. Also, it is almost lunchtime and I’m a bit hungry.
need to choose is which industrial network I want to connect to. In this case we are connecting to PROFIBUS, but the Communicator has support for most major fieldbus or Industrial Ethernet networks.
I click next and now get to select the sub-network settings – the physical properties of my Modbus RTU device. This information can be found in the manual of the ABB Commander C100. I can also get some help thru the help pane available to the right throughout the wizard.
The ABB Commander C100 uses RS485 as the physical interface. It has a bitrate of 9600, even parity, 8 data bits, and 1 stop bit.
I click next to move on to step number 3 where I specify the device type and also set up which parameters that should be available. I start by naming my device “ABB C100 Regulator.” I know that there are four parameters that I want to read and write from the device so I click “Create parameters” four times.
The first is “local setpoint” which is a write command to the C100 from the PROFIBUS network. This is found on address number 42 and the length is one Word.
The second parameter is Process variable, which is a read parameter. It is on address 12 and also one word long.
The third is Output value. Also a read parameter on address 14.
And the fourth parameter is Auto or Manual Control. This a Read parameter which can be found on register address 15 and is also one word in length.
At this point, it is a good idea to save the device configuration. This way, I have a configuration file that I can reuse later on, if I want to set up another ABB Commander. I can easily load my saved configuration file by clicking “Load Device.”
OK, I now move on to the next step where I set up the C100 as a node which is to communicate on the PROFIBUS network. I click Create Node and name it “Our Regulator.” I want it to have Subnetwork Address 1 and I want to apply the Device Type we have just created “ABB C100 Regulator”.
I click next to move on to step 5 which is where I select the parameters I want to use for each node. For example, I can choose to use only two of the parameters I specified earlier. To do that, I click Add Parameter twice and select two of the parameters I set up previously. Let’s say “Local setpoint” to be able to write to the device and “Output value” from the device.
By clicking next, I get to the last step which is a summary of my configuration. I can save this to my computer to document what I have just done.
And that’s pretty much it. I have entered all the information needed to enable communication between my ABB Commander C100 and PROFIBUS.
I can check my configuration and see the values I just inserted. I can see that we have chosen PROFIBUS and I can also see the default values for my Anybus Communicator.
Generally, the default values are OK, but you can make adjustments if needed.
By going into the Subnetwork, I find our Regulator with two parameters beneath it, just as we set up. By going into these parameters, I can change details such as for example the update mode from cyclically to “on data change.” So now the data is only sent if there is a change. I can also state what I want to do if the network goes offline – should the data freeze at it’s current value or be cleared entirely.
To finalize my configuration, I need to download the configuration to my Communicator. To do this, I first need to select my COMport which I do under Tools and Port. In this case I choose COM port 5. I now connect and can see a green light at the bottom meaning that the Communicator and my computer are connected. I click Download and state the name for my configuration. By clicking OK the configuration is downloaded to the Communicator. I can disconnect and we are finished.
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