FAQ 0002 - What is the maximum number of high-speed ECAT modules that can be connected to an XCP gateway?

What is the maximum number of high-speed ECAT modules that can be connected to an XCP gateway?

Note: To use high-speed measurement rates (sampling rates greater than 10 kHz) with CSM ECAT modules, the ECAT operating mode must be set to "10 kHz or packed" in the XCP gateway.

The maximum possible number of modules depends significantly on the selected sampling rate.
The following table applies if all modules of the measurement chain are configured at the same rate:

Sampling Rate	Max. Number of Modules	Max. Number of Channels
10 kHz	25 × ECAT STGMM 6	150 channels
10 kHz	25 × AD4 ECAT MM	100 channels
100 kHz	11 × AD4 ECAT MM	44 channels
1000 kHz	1 × AD4 ECAT MM	4 channels

Mixed high speed measuring rates can only be used in combination with the XCP version 1.4 format. To do this, set the XCP compatibility accordingly in the CSMconfig program settings. The combination possibilities of modules with different sampling rates are almost unlimited. Therefore, the maximum number of modules for two combinations is listed in the following table as an example:

Max. Number of Modules	Sampling Rate	Max. Number of Channels
1 × AD4 ECAT MM + 1 × AD4 ECAT MM + 1 × AD4 ECAT MM	1000 kHz	4 channels
	100 kHz	4 channels
	10 kHz	4 channels
1 × AD4 ECAT MM + 11 × AD4 ECAT MM	1000 kHz	4 channels
1 × AD4 ECAT MM + 11 × AD4 ECAT MM	10 kHz	44 channels

The CSMconfig configuration software provides feedback when configuring an ECAT measurement chain:
Overload configurations are easy to detect and prevent because a warning message appears if the permissible CAN bus load is exceeded.