Foreword
• The type, version and revision are read as decimal numbers, even if they are technically saved in
hexadecimal.
Identification number
Beckhoff EtherCAT devices from the different lines have different kinds of identification numbers:
Production lot/batch number/serial number/date code/D number
Serial number is the name generally given to the 8-digit number that is printed on the device or attached to it
on a sticker. This serial number indicates the as-built status on delivery and thus ambiguously marks a whole
production lot.
Structure of the serial number: KK YY FF HH
KK - week of production (CW, calendar week)
YY - year of production
FF - firmware version
HH - hardware version
Example with ser. no.: 12063A02: 12 - production week 12 06 - production year 2006 3A - firmware version
3A 02 - hardware version 02
Exceptions can occur in the IP67 area , where the following syntax can be used (see respective device
documentation):
Syntax: D ww yy x y z u
D - prefix designation
ww - calendar week
yy - year
x - firmware version of the bus PCB
y - hardware version of the bus PCB
z - firmware version of the I/O PCB
u - hardware version of the I/O PCB
Example: D.22081501 calendar week 22 of the year 2008 firmware version of bus PCB: 1 hardware version
of bus PCB: 5 firmware version of I/O PCB: 0 (no firmware necessary for this PCB) hardware version of I/O
PCB: 1
Unique serial number/ID
Beyond that there are some series in which each individual module has its own unique, sequential serial
number.
See also the further documentation in the area
• IP67: EtherCAT Box
• Safety: TwinSafe
EL72x1-0010 9Version: 2.0
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