Omron SYSMAC CJ1W-PRM21, Operation Manual

Page: 22 / 190

8
Setting up a PROFIBUS-DP Network
Section 1-2
DTM properties In general, a DTM is a Microsoft COM-component, which can be executed
from within a FDT container application. A DTM is not a stand-alone tool, it
requires a FDT container application to be executed. The DTM provides a
number of interface functions, through which it can be controlled and
accessed in order to transfer data to or from the DTM.
A DTM provides all the options for configuration and monitoring of a device,
which it can present to the user through its own user interface.
ActiveX User interface The User Interface for a DTM is provided using ActiveX windows. Control of
these windows is done by the DTM, but the FDT container application can
request specific user input from the DTM, based on which the DTM will pro-
vide the necessary ActiveX windows. In general multi-language user interface
windows, including DTM specific Help files are supported by the DTM.
XML based data transfer Data transfer to and from a DTM is provided using XML-documents. The
XML-documents are standardized for the communication between the FDT
container application and for communication between DTMs.
An additional specification covers the definition of XML-data formats for the
transfer of application specific data, such as PROFIBUS data.
Communication DTM In general, a device configuration DTM is accompanied by a communication
DTM. This specific DTM facilitates device specific communication, e.g. for
downloading a configuration to a PROFIBUS-DP Master Unit and/or for
retrieving monitoring information from PROFIBUS-DP Master Unit. It may
incorporate the specific communication protocol, or rely on other available
drivers.
CX-Profibus CX-Profibus is a FDT container application. Together with this container appli-
cation, OMRON provides two DTMs:
• A DTM to facilitate configuration of the CS1W-PRM21/CJ1W-PRM21
PROFIBUS Master Units
• A DTM to facilitate integration of GSD file based devices in to CX-Profibus
(see section 1-2-3 GSD file Technology for more information)
1-2-3 GSD file Technology
GSD file technology The older and most commonly used configuration technology is the based on
GSD files (Gerätestammdaten file). A GSD file is a text file, containing the
characteristic features and configuration options of a device. The device data
base file of each device is loaded in the configurator and downloaded to the
master device.
GSD files are usually supplied with each unit. Alternatively, GSD files can be
downloaded from the Internet, either from the manufacturer's site, or from the
GSD library of the PROFIBUS Nutzer Organisation at http://www.profi-
bus.com.
GSD file language The language used in the GSD file is indicated by the last letter of the file
extension, *.GS?:
Default = GSD
English = GSE
German = GSG
Italian = GSI
Portuguese = GSP
Spanish = GSS