12 Using SWD modules with the EtherCAT field bus
248 SmartWire-DT module IP20 01/20 MN05006001Z-EN www.eaton.com
Since the EtherCAT configurator only allows for whole bytes to be written,
the required value needs to be determined individually and the corresponding
option byte must then be overwritten.
Example
Analog module EU5E-SWD-2A2A has the following entries:
Option byte receives a value of 0x83.
If you wanted data communications on the SmartWire-DT network to con-
tinue even when the module is not present, bit 1 would need to be set to 0.
The option byte's new value would then be 0x81.
5 reserved Do not change this bit's value!
6 Module features data profiles Do not change this bit's value!
7
Module supports acyclical data
communications
Do not change this bit's value!
Bit
Description Remark Default New
0 Module features
extended parameters
Do not change this bit's value! 1 1
1
Module is optional FALSE (0): Data communications on the Smart-
Wire-DT network will continue even if the
module is missing.
TRUE (1): No data communications on the
SmartWire-DT network if the module is
missing (default setting).
1 0
2 CRC8 checksum Do not change this bit's value! 0 0
3
Data format Do not change this bit's value! 0 0
4 Can be replaced with
universal module
FALSE (0): It is not permitted for the device to
be replaced with a universal module (default
setting).
TRUE (1): It is permitted for the device to be
replaced with a universal module.
0 0
5
reserved Do not change this bit's value! 0 0
6 Module features data
profiles
Do not change this bit's value! 0 0
7
Module supports acyclical
data communications
Do not change this bit's value! 1 1
Bit
Description Remark