Logic Blocks: Instances 29 & 30 of the Logic Block objects, 8-input AND/OR/NOR/NAND, did not function correctly in an MN550 controller. Instance 29 was always OFF and instance 30 was always ON (even with no inputs connected).
Firmware update is required.
This has been corrected with MicroNet 50 controller Firmware version 5 released August 2008.
Additional information on firmware 5 can be found in TPA-LOND-08-0014.00