BECKHOFF EtherCAT Registers Section II - Manual (Page 30)

Physical Read/Write Offset (0x0108:0x0109)
II-18 Slave Controller – Register Description
3.18 Physical Read/Write Offset (0x0108:0x0109)
Table 21: Register Physical Read/Write Offset (0x0108:0x0109)
ESC20 ET1100 ET1200 IP Core
Bit Description ECAT PDI Reset Value
15:0 Offset of R/W Commands (FPRW, APRW)
between Read address and Write address.
RD_ADR = ADR and WR_ADR = ADR +
R/W-Offset r/w r/- 0