Applies To:
  • CitectSCADA 5.xx, 6.00
  • CitectHMI 5.xx, 6.00

How can CitectSCADA communicate with Datatakers devices?  

CitectSCADA has a DATATAKR driver to communicate to Datataker (DT) data logger devices through serial communication. The X scan schedule must be configured on the device and is used by the Citect driver to obtain data. This driver has been functionally tested with Datataker Data Loggers series 50, 500 & 600 and implements the DARTS protocol. The DART protocol is a proprietary protocol developed by Data Electronics to ensure reliable communications over links that are susceptible to error. The protocol uses numbered packets with an ACK / NAK response and a 16 bit checksum to ensure reliable transmission of data.

The DATATAKR driver cannot be used to communicate with DT devices over Ethernet due to its DARTS implementation. The DT device may have an inbuilt Ethernet interface, e.g. DT800, or is using the RS232-to-Ethernet converter accessory. In this case you will need to use the DeLogger OPC server for CitectSCADA to communicate to the device. DeLogger is freely available from DataTaker’s web site ( After installing DeLogger you must run the “OPC_DA20_Components.exe” application located in the ..\DeLogger \opcserver folder. This will activate the OPC server so that it will run once a connection has been established to a device within DeLogger. CitectSCADA can then connect to this OPC server through its OPC client driver and communicate to the device. As a further option to this, the DeLogger Pro is also available but must be purchased. This allows the user to customise the OPC tag names.

Datataker,DeLogger, OPC, DATATAKR