Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 15
Product Overview Chapter 1
Firmware Revisions
The feature list of the 450L-B and of the 450L-E light curtains continuously
expands. Table 3
lists the components that have firmware that can be upgraded
using ControlFLASH™ software.
Table 3 - Firmware Revisions of 450L Safety Light Curtains
For maintenance reasons, a 450L stick with an old FW version can be operated
with a 450L stick with newer FW.
Family Version Description
450L-B
1.001 Initial Release. Does not support Connected Components Workbench™ software.
2.001
Support Connected Components Workbench software diagnosis and connection with
T-connector. Can be used as the last pair of cascading.
3.001 Same feature as 2.001 but 4K security key.
4.001 Support Connected Components Workbench software diagnosis.
5.001 Same feature as 4.001.
450L-E
2.001
Initial release and supports Connected Components Workbench software diagnosis.
Supports Safety Override, Dry Contact Switch, and E-stop. Cascaded light curtains Tx
side cannot use universal plug-in, the host pairs can still use universal plug-in.
3.001 Same feature as 2.001.
4.001
Support Connected Components Workbench software diagnosis and configuration.
Not backward compatible with 450L-APC-IO-8.
5.001 Same feature as 4.001.
450L-APC-IO-8
1.001 Initial Release.
2.001 Allows 450L-APU-UN-8 to be used as a transmitter in a cascaded stick.
3.001 Same feature as 2.001.
4.001 Backward compatible with LC.
5.001 Same feature as 4.001.
450L-OID
1.001
Initial Release, does not support 450L-E. If you get a message, “The connection to the
450L safety light curtain will be terminated because of repeatedly mismatched
checksum calculation errors” then upgrade the FW to 1.002 or later.
1.002 Support LC Diagnosis and FW update.
3.001
Backward compatible with LC. It supports LC FW 3.001 diagnosis, FW update, reset,
confirm and blanking teach command. Added 4K key certificate support.
4.001
Backward compatible with LC. Example: 2.001, 3.001, 4.001 LC can work with 5.001
OID, but 3.001, 4.001 OID cannot work with 5.001 LC.
5.001 Backward compatible with LC.