Profibus DP slave load reduction

Hello!

I have a Grundfos CIM 150 Profibus DP which is connected to an S7-400H station via a Y-Link. Since the input and output areas of the Y-Link are limited, and there are other devices connected to its master system, I would like to reduce the amount of data exchanged with the CIM.

The GSD file for the slave (attached) specifies a number of modules for various control bytes, status bytes, and measured variables. Am I correct in thinking that I can drag and drop just the modules/variables I need in the Hardware Configuration window of Step 7, or do I need to select them all? Is the order of the modules important?

I'm a bit confused about this because the modularity isn't physical, it's just a segmentation of the device's data.

Hello nemanjababic;

I have no experience with these pump controllers, but with other similar types you can select the required modules needed for your application.

Of course, minimally you would need a Controlmodule (module 2, Output; study this one very carefully) and a Status module (module 1, Input), a WarningCode module for alarms, and whatever number of Measurement Data Modules you find necessary to control your process.

Select all the modules that you woudl need minimally and calculate the number of bytes required for each pumps controller.

Hope this helps,

Daniel Chartier