User manual

105G Wireless Gateway User Manual
Elpro_man_105g_1.18.doc Page 126
4.13.3 EDS File
Each device in a DeviceNet network is associated with an EDS file, containing all necessary
information about the device. This file is used by the network configuration tool during network
configuration. The EDS file can either be downloaded from the ELPRO Technologies website
(www.elprotech.com)
, or found on the Product CD supplied with the module.
4.13.4 Protocol and Supported Functions
The 105G DeviceNet module is implemented according to the ODVA specification for a
communication adapter (profile no 12) and acts as a group two only server on the DeviceNet
network.
The 105G DeviceNet supports the following connection types:
• Explicit Messaging
• Polled I/O
• Bit-strobed I/O
• Change-of-state / Cyclic I/O
The 105G DeviceNet supports up to 512 bytes of input and 512 bytes of output data via the
DeviceNet interface. I/O Data exchange with a DeviceNet Scanner can be performed using any
of the above connection types. DeviceNet Scanner configuration towards the 105G is possible
via an EDS file.
DeviceNet is based on the Control and Information Protocol (CIP), which is also the framework
for both ControlNet and Ethernet/IP, to carry and exchange data between nodes. The 105G
supports the mandatory objects as well as some vendor specific objects. The mandatory objects
are the ones in the specification from ODVA. The following vendor specific objects are
implemented:
• I/O data input mapping object, Class A0h
• I/O data output mapping object, Class A1h
Since theses objects are the same as for Ethernet/IP, for the specification of these objects see
section ‘4.12.3 Ethernet/IP’. For further examples refer to the 105G DeviceNet Application
Note.
4.14 Fieldbus Configuration – Modbus Plus
4.14.1 Modbus Plus Introduction
Modbus Plus is a local area network system designed for industrial control and monitoring
applications. The network enables programmable controllers, host computers and other devices
to communicate throughout plants and substations. Modbus Plus is normally used in industrial
automation, to transfer fast data for motor controllers, MMI, I/O units and other industrial
equipment.
The 105G Modbus Plus module communicates according to the Modbus Plus Protocol. This
means that it can communicate with all Modbus Plus nodes that comply with this protocol, but it
does not necessarily mean that all services available in the Modbus Plus protocol are supported.