SFA-5000 • SFA-10000 EtherCAT
6.1.5 Addressing
It is not necessary to assign a physical address to the device (for instance using
a dip-switch) because the addressing of the Slave is automatic at power-on
during the initial scanning of the hardware configuration.
The field for addressing is 32 bits long; there are three kinds of addressing:
Auto Increment Addressing = Position Addressing: 16 bits indicate the
physical position of the Slave inside the network while 16 bits are scheduled
for local memory addressing; when the Slave receives the frame then it
increments the position address and the Slave receiving address 0 is the
addressed device;
Fixed Addressing = 16 bits indicate the physical address of the Slave inside
the network while 16 bits are scheduled for addressing the local memory;
Logical Address = the Slave is not provided with its own individual address,
but it can read and write data in a section of the total memory space
available (4 Gigabytes).
MAN SFA_5000_10000_EC E 1.0.odt
6 - EtherCAT® interface
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