PROFIBUS Configuration

The following steps are required to connect an RMC unit to a PROFIBUS network. Each is described below:

Set the RMC’s Station Address
The RMC requires a station address to be selected.

Determine the Appropriate GSD Configuration Module
The RMC’s GSD file has a number of configuration modules; only one may be selected. However, it is vital that the correct configuration module be selected for a given RMC unit.

Configure the PROFIBUS Network
The master device requires knowledge of all slave devices on the network and the configuration of each slave device.

Setting the RMC’s Station Address

The steps above set the station addresses as expected by the master; this step sets the station address that the RMC unit actually responds to. Both must be set to the same value for the same unit. The RMC100 can use any station address between 0 and 126; the address is saved in the Flash memory. The default station address is 126. There are two methods of changing this address:

RMCWin has the ability to change the RMC100 station address. Use the following steps:

Start RMCWin.
Establish a connection between RMCWin and the RMC. See Connecting RMCWin to an RMC for details.
On the Tools menu, click Module Configuration.
In the Slots list, click the PROFIBUS-DP item.
Click Slot options.
In the Station Address box, type in the new station address.
Click Update RMC.
The Update Module Configuration dialog box will be displayed to indicate the progress. If the module could not be reset automatically, you may be prompted to reset the module manually.
In the RMC Configuration dialog box, click Close.

A PROFIBUS-DP class-2 master can request a change in the address of the RMC. The method in which this is done varies for each piece of master software. Refer to the documentation for your PROFIBUS-DP master for details on this method.
When changing the address via a class-2 master, it is possible to lock further address changes so further master requests to change the address are rejected. The method of doing this varies depending on the master software used.

Note: It is still possible to change the address from RMCWin as described above; doing so will remove the lock on changing the address from a class-2 master.

Note: When the station address is changed with this method, the data will be automatically stored to Flash. It is also unnecessary to issue an Update Flash command. It is also important to note that all current parameters will be stored in the Flash, not just the station address.

Determine the Appropriate GSD Configuration Module

The nomenclature of the configuration modules in the GSD file has changed for each GSD-file version. This section uses version 1.3’s nomenclature. The following chart shows the corresponding names in the other versions:

Version 1.3	Version 1.2	Version 1.1	Version 1.0
Message Mode	RMC in Message Mode	--	--
n Axes with Sync	RMC with n axes	RMC with n Axes	RMC1n0-PROFI
n Axes and DI/O with Sync	RMC with n Axes and DI/O	RMC with n Axes and Sensor DI/O	--
n Axes without Sync	--	--	--
n Axes and DI/O without Sync	--	--	--

The DELT1630.GSD file contains many configuration module entries. When adding an RMC to your PROFIBUS network in the step below, you will need to select exactly one of these configuration modules. Each of these modules is assigned a title, which is often referred to by PROFIBUS configuration software as an Order Number.

The first factor to take into consideration when determining the correct GSD order number is which operation mode you intend to use: Compact (with or without Sync) or Message Mode. If you do not know the difference between these modes or have not yet determined which is right for your application, please read these topics.

If you are using Message Mode, then the correct configuration module to select in the GSD file is entitled Message Mode.

If you are using Compact Mode, then the correct configuration module depends on (1) whether you wish to use a synchronization register or not, and (2) the configuration of the RMC itself. Example order numbers in the GSD file include 2 Axes with Sync, 4 Axes without Sync, and 4 Axes and DI/O with Sync. To help you select the correct Compact Mode order number, do the following:

Start RMCWin
Connect to the RMC module to be configured.
On the Tools menu, click Module Configuration.
In the Slots list, click the PROFIBUS-DP item.
Click Slot options.
Look in the Acceptable GSD Config Modules list. The second and third entries are the appropriate Compact Mode with and without Sync choices respectively.

Configuring your PROFIBUS Network

The PROFIBUS network configuration is stored in the master PROFIBUS device. Creating this configuration is the most difficult step in making the network work. This step requires a device description file (GSD file) from each device in the network; the RMC’s GSD file is named DELT1630.GSD and is installed by the RMCWin software package.

The following steps outline configuring your PROFIBUS-DP network. The steps are general because several master configuration programs are available, and each handles these steps differently.

If you are using Analog cards (12-bit or 16-bit), you must first select the mode of operation for each analog channel. This must be done first because it may change the count of axes the module contains. See Analog Transducer Configuration for details.
Open your PROFIBUS-DP master configuration program.
If you are modifying an existing PROFIBUS-DP network, open your current configuration file.
If you are creating a new PROFIBUS-DP network, you must create a new network, add a master device to the network, and select the baud rate of the network.
Add the DELT1630.GSD file to your configuration program’s GSD database if it is not already there.
Add a Delta RMC Family slave device to the network. Refer to the sub-topic Determining the Appropriate GSD Configuration Module above for details on selecting the correct configuration module.
Configure the RMC Slave Device. This involves selecting the correct configuration module for your RMC module and application. Refer to the sub-topic Determining the Appropriate GSD Configuration Module above for details on selecting the correct configuration module.
Select the addresses that the master will use for the registers read from the RMC.
Add any other RMC devices you want on the same network. To do this, repeat steps 6 through 8.
Save your configuration.
Send the configuration to the master device. This step varies greatly depending on the type of master you use.

If you are using COM PROFIBUS, SyCon, or SST Profibus Configuration, you should select one of the following topics for more detailed instructions: