1769-L20 Allen Bradley PLC CompactLogix
The 1769-L20 controller supports as many as 8 local I/O modules on the CompactBus. The 1769-L30 controller supports up to 16 local I/O modules. An end cap/terminator must be used on the last I/O bank. 1769-L20 supports a maximum of two banks. 1769-L30 supports a maximum of three banks.1769-L20.













