Appendix C - Device Configuration/Setting Through Ff Communication; Commissioning - ABB 266 Operating Instruction

266 Models - FOUNDATION Fieldbus
Then variables in white or yellow fields can be changed and written in the device pressing the buttons "Write" or "Correct". The
"Write" button change only the actual values. The "Correct" button change both the actual values than the configuration values
Appendix C – Device Configuration/Setting through FF communication
When the 266 PdP transmitter has to be used in a FF project and/or connected to any type of Host, the first operation is to
import in the Host the DD and CF files of the device. The DD and CF files can be downloaded from the ABB website www.abb.
com/intrumentation or from the FF organization website www.fieldbus.org under Registered Products
When the DD and CF files has been imported in the Host then:
– All the device blocks are visible and it is possible access at their parameters for operations like configuration/parameterization,
maintenance, monitoring by reading or writing the parameters mapped in the transmitter's blocks and addressed via index
– The device can be instantiated in a network design and its Function Blocks can be instantiated into a Function Block
Application (FBAP) for the plant control strategy.

Commissioning

Once the transmitter has been installed, it is put into operation by switching on the operating voltage.
Check the following before switching on the operating voltage:
– Process and electrical connections
– The impulse line/s and the measuring chamber of the measuring equipment must be completely filled with the measuring
medium. The transmitter can then be put into operation. To do this, the shut-off valves must be actuated in the following
sequence (in the default setting, all valves are closed):
(Differential models) 266Dx or 266Mx
– Open the shut-off valves on the pressure tap connection (if present).
– Open the pressure equalization valve of the manifold.
– Open the positive shut-off valve (on the manifold).
– Open the negative shut-off valve (on the manifold).
– Close the pressure equalization valve.
To put the transmitter out of operation, carry out the steps in reverse order.
84 OI/266/FF/ADD-EN Rev. B | 2600T Series Pressure transmitters