The NJ1011000: Rack-mount NJ-series CPU with EtherCAT and EtherNet/IP on the same backplane—one less ground loop to chase if you keep the shield terminated at one end. 3 MB of program space and 32765 words of data memory will hold a medium-bottle-line sequence. Battery-backed RAM and a real-time clock keep the sequence alive through power drops without a dry contact to reset.
Rack vs rail: NJ1011000 vs NJ3011100
Current production, so no last-time-buy panic. For compliance documentation the evidence doesn't cover; if your QC needs RoHS or CE declarations, that would come with the factory shipment.