BECKHOFF EtherCAT Technology Section I - Manual (Page 94)

SII EEPROM
I-74 Slave Controller – Technology
An excerpt of the SII EEPROM content following the ESC Configuration area is shown in Table 38.
For more information, refer to the ETG.2000 EtherCAT Slave Information (ESI) Specification, available
from the download section of the EtherCAT Technology Group website (
http://www.ethercat.org ).
Table 38: SII EEPROM Content Excerpt
Word
Address
Parameter Word
Address
Parameter
0x0 PDI Control 0x14 Bootstrap Receive Mailbox Offset
0x1 PDI Configuration 0x15 Bootstrap Receive Mailbox Size
0x2 Pulse Length of SYNC Signals 0x16 Bootstrap Send Mailbox Offset
0x3 Extended PDI Configuration 0x17 Bootstrap Send Mailbox Size
0x4 Configured Station Alias 0x18 Standard Receive Mailbox Offset
0x5:0x6 Reserved 0x19 Standard Receive Mailbox Size
0x7 Checksum 0x1A Standard Send Mailbox Offset
0x8:0x9 Vendor ID 0x1B Standard Send Mailbox Size
0xA:0xB Product Code 0x1C Mailbox Protocol
0xC:0xD Revision Number 0x1D:0x3D Reserved
0xE:0xF Serial Number 0x3E Size
0x10 Execution Delay 0x3F Version
0x11 Port0 Delay 0x40 First Category Type/Vendor
Specific
0x12 Port1 Delay 0x41 Following Category Word Size
0x13 Reserved 0x42 Category Data
… Second Category …
11.2 SII EEPROM Logical Interface
The SII EEPROM interface of the ESC is either controlled by EtherCAT or by the PDI. Initially,
EtherCAT has EEPROM interface access, but it can transfer access to the PDI.
Table 39: SII EEPROM Interface Register Overview
Register Address Description
0x0500 EEPROM Configuration
0x0501 EEPROM PDI Access State
0x0502:0x0503 EEPROM Control/Status
0x0504:0x0507 EEPROM Address
0x0508:0x050F EEPROM Data
The EEPROM interface supports three commands: write to one EEPROM address (1 Word), read
from EEPROM (2 or 4 Words, depending on ESC), or reload ESC configuration from EEPROM.