Using NODE_INDEX to offset VR's for multiple slaves on EtherCAT master

Using NODE_INDEX to offset VR's for multiple slaves on EtherCAT master

Use NODE_INDEX to set the pointer for block of VR's for multiple slaves on EtherCAT master. For example:

NODE_INDEX(0,node) = 20 ' with node being node number of the drive & 20 will offset the VR's by 20