EtherCAT chassis NI 9145 - Can I change the FMMUs and Sync Managers

[manojrr]

Hello,

I am trying to use my NI 9145 ethercat slave chassis hardware with an external Master. The external master requires more FMMUs and Sync managers. How do I change these parameters in my chassis?. The option seems to be grayed out. Any help would be appreciated. 

Thanks