HART communication setting in Freelance 2013 SP1 through AI815 Module for reading multiple values
In one of our project, we have AC800FR and Freelance 2013 SP1. We are using AI815 module through Profibus. We connected one HART device from Rosemount(multivariable transmitter) in AI815. After loading the DTM of device(downloaded from M/s Emerson's website), we are able to connect to the device. In hardware structure we are able to see the values of different parameter
3 Differential Pressure
But we are not able to take these values to graphics( we are not able to assign these values to variables).
The detail of instrument is " Rosemount_3051SMV_MultiVariable_Mass_Energy_Flow"
Model is "3051S MV"
Please explain, whether we can use the other DTM also directly in our program?
How we can read more than 1 parameter in HART.
You must remember that Your IO module needs to have full HART support. To my best knowledge the module AI815, doesn't support second & third value transfer. This means that You can see those values in DTM User Interface, but can't transfer them to controller.So you can't transfer to graphics. For this aim you have to use S900 I/O family.
On the other hand You can set up one Digivis station so that users can start DTMs from it. This option is called Extended Maintenance Station and can be activated by simply checking the Extended Diagnostics box in DigiVis Header menu. In version 9.2 it also requires a seperate licence. From ver. 2013 this extended diagnostics licence is included in base Digivis licence.
Hope it helps you.