OPC DA Server for the Controller Area Network (CAN)
OPC Server compliant to OPC DA (Data Access) specification 3.0, 2.05a, 2.0 and 1.0a
Allows connecting most SCADA/HMI systems on the market to CAN fieldbus devices
OPC item data freely configurable: endianess and bit exact length/position in CAN data
Works with any esd CAN interface with Windows® driver support
Configuration based on text file (CSV file)
Software Requirements (CAN OPC Server):
Software Requirements (Sample OPC client):
Configuration Based on Text File
CSV file (Comma Separated Values) to describe the OPC items and the fieldbus configuration (CAN baud rate, ...) which can easily be edited with a text editor or most spreadsheet software.
CAN data is mapped into OPC items or vice versa with bit granularity by definition of CAN-ID, bit position, bit length and endianess together with data conversion rules for the standard OPC variable types (UI16, I32, ...) and access types (read/write).
Input Data / Read-only OPC Items
The OPC variable’s data is updated whenever a CAN message matches the configuration.
Output Data / Write-only OPC Items
Changing the OPC variable’s data triggers sending the related CAN message according to the configuration.
Sample Windows OPC Client Included
To quickly test the OPC server’s functionality/configuration. Lists all OPC servers, allows to read/write variables etc. Additionally a simple graphical plotter is included, e.g. to display some variable’s history.